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Finding the Fourth Proportional to 225,302.01, 337,935.70 and 139,930.18

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Solution

The fourth proportional to 225,302.01, 337,935.70 and 139,930.18 is: 209,884.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,302.01 : 337,935.70 = 139,930.18 : x
  2. Step 2: Convert to fraction form
    225,302.01/337,935.70 = 139,930.18/x
  3. Step 3: Cross multiply
    225,302.01x = 337,935.70 × 139,930.18
  4. Step 4: Simplify right side
    225,302.01x = 47,287,403,773.28
  5. Step 5: Solve for x
    x = 47,287,403,773.28/225,302.01
  6. Step 6: Final answer
    x = 209,884.52

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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.