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Finding the Fourth Proportional to 84,389.90, 126,474.12 and 62,098.90

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Solution

The fourth proportional to 84,389.90, 126,474.12 and 62,098.90 is: 93,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,389.90 : 126,474.12 = 62,098.90 : x
  2. Step 2: Convert to fraction form
    84,389.90/126,474.12 = 62,098.90/x
  3. Step 3: Cross multiply
    84,389.90x = 126,474.12 × 62,098.90
  4. Step 4: Simplify right side
    84,389.90x = 7,853,903,730.47
  5. Step 5: Solve for x
    x = 7,853,903,730.47/84,389.90
  6. Step 6: Final answer
    x = 93,066.87

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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.