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Finding the Fourth Proportional to 84,744.60, 127,116.90 and 62,437.20

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Solution

The fourth proportional to 84,744.60, 127,116.90 and 62,437.20 is: 93,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,744.60 : 127,116.90 = 62,437.20 : x
  2. Step 2: Convert to fraction form
    84,744.60/127,116.90 = 62,437.20/x
  3. Step 3: Cross multiply
    84,744.60x = 127,116.90 × 62,437.20
  4. Step 4: Simplify right side
    84,744.60x = 7,936,823,308.68
  5. Step 5: Solve for x
    x = 7,936,823,308.68/84,744.60
  6. Step 6: Final answer
    x = 93,655.80

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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.