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Finding the Fourth Proportional to 125,640.54, 188,488.59 and 41,397.30

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Solution

The fourth proportional to 125,640.54, 188,488.59 and 41,397.30 is: 62,105.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,640.54 : 188,488.59 = 41,397.30 : x
  2. Step 2: Convert to fraction form
    125,640.54/188,488.59 = 41,397.30/x
  3. Step 3: Cross multiply
    125,640.54x = 188,488.59 × 41,397.30
  4. Step 4: Simplify right side
    125,640.54x = 7,802,918,706.81
  5. Step 5: Solve for x
    x = 7,802,918,706.81/125,640.54
  6. Step 6: Final answer
    x = 62,105.10

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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.