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Finding the Fourth Proportional to 145,156,674.30, 217,735,011.45 and 145,156,674.30

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Solution

The fourth proportional to 145,156,674.30, 217,735,011.45 and 145,156,674.30 is: 217,735,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,674.30 : 217,735,011.45 = 145,156,674.30 : x
  2. Step 2: Convert to fraction form
    145,156,674.30/217,735,011.45 = 145,156,674.30/x
  3. Step 3: Cross multiply
    145,156,674.30x = 217,735,011.45 × 145,156,674.30
  4. Step 4: Simplify right side
    145,156,674.30x = 31,605,690,140,754,420
  5. Step 5: Solve for x
    x = 31,605,690,140,754,420/145,156,674.30
  6. Step 6: Final answer
    x = 217,735,011.45

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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.