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Finding the Fourth Proportional to 339,209.40, 508,887.90 and 102,545.90

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Solution

The fourth proportional to 339,209.40, 508,887.90 and 102,545.90 is: 153,841.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,209.40 : 508,887.90 = 102,545.90 : x
  2. Step 2: Convert to fraction form
    339,209.40/508,887.90 = 102,545.90/x
  3. Step 3: Cross multiply
    339,209.40x = 508,887.90 × 102,545.90
  4. Step 4: Simplify right side
    339,209.40x = 52,184,365,160.17
  5. Step 5: Solve for x
    x = 52,184,365,160.17/339,209.40
  6. Step 6: Final answer
    x = 153,841.15

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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.