Home / 351,424.17-527,131.60-85,187.09

Finding the Fourth Proportional to 351,424.17, 527,131.60 and 85,187.09

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Solution

The fourth proportional to 351,424.17, 527,131.60 and 85,187.09 is: 127,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,424.17 : 527,131.60 = 85,187.09 : x
  2. Step 2: Convert to fraction form
    351,424.17/527,131.60 = 85,187.09/x
  3. Step 3: Cross multiply
    351,424.17x = 527,131.60 × 85,187.09
  4. Step 4: Simplify right side
    351,424.17x = 44,904,808,155.91
  5. Step 5: Solve for x
    x = 44,904,808,155.91/351,424.17
  6. Step 6: Final answer
    x = 127,779.51

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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.