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Finding the Fourth Proportional to 351,415.17, 527,155.16 and 114,759.09

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Solution

The fourth proportional to 351,415.17, 527,155.16 and 114,759.09 is: 172,149.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,415.17 : 527,155.16 = 114,759.09 : x
  2. Step 2: Convert to fraction form
    351,415.17/527,155.16 = 114,759.09/x
  3. Step 3: Cross multiply
    351,415.17x = 527,155.16 × 114,759.09
  4. Step 4: Simplify right side
    351,415.17x = 60,495,845,876.61
  5. Step 5: Solve for x
    x = 60,495,845,876.61/351,415.17
  6. Step 6: Final answer
    x = 172,149.22

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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.