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Finding the Fourth Proportional to 84,388.90, 126,472.62 and 62,097.90

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Solution

The fourth proportional to 84,388.90, 126,472.62 and 62,097.90 is: 93,065.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,388.90 : 126,472.62 = 62,097.90 : x
  2. Step 2: Convert to fraction form
    84,388.90/126,472.62 = 62,097.90/x
  3. Step 3: Cross multiply
    84,388.90x = 126,472.62 × 62,097.90
  4. Step 4: Simplify right side
    84,388.90x = 7,853,684,109.50
  5. Step 5: Solve for x
    x = 7,853,684,109.50/84,388.90
  6. Step 6: Final answer
    x = 93,065.37

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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.