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Finding the Fourth Proportional to 208,656,376,475.70, 312,984,564,713.54 and 208,656,376,475.70

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Solution

The fourth proportional to 208,656,376,475.70, 312,984,564,713.54 and 208,656,376,475.70 is: 312,984,564,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,656,376,475.70 : 312,984,564,713.54 = 208,656,376,475.70 : x
  2. Step 2: Convert to fraction form
    208,656,376,475.70/312,984,564,713.54 = 208,656,376,475.70/x
  3. Step 3: Cross multiply
    208,656,376,475.70x = 312,984,564,713.54 × 208,656,376,475.70
  4. Step 4: Simplify right side
    208,656,376,475.70x = 65,306,225,165,951,494,520,832
  5. Step 5: Solve for x
    x = 65,306,225,165,951,494,520,832/208,656,376,475.70
  6. Step 6: Final answer
    x = 312,984,564,713.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.