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Finding the Fourth Proportional to 347,111.88, 521,149.70 and 178,752.58

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Solution

The fourth proportional to 347,111.88, 521,149.70 and 178,752.58 is: 268,377.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,111.88 : 521,149.70 = 178,752.58 : x
  2. Step 2: Convert to fraction form
    347,111.88/521,149.70 = 178,752.58/x
  3. Step 3: Cross multiply
    347,111.88x = 521,149.70 × 178,752.58
  4. Step 4: Simplify right side
    347,111.88x = 93,156,853,441.23
  5. Step 5: Solve for x
    x = 93,156,853,441.23/347,111.88
  6. Step 6: Final answer
    x = 268,377.02

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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.