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Finding the Fourth Proportional to 83,146.60, 124,719.90 and 62,410.60

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Solution

The fourth proportional to 83,146.60, 124,719.90 and 62,410.60 is: 93,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,146.60 : 124,719.90 = 62,410.60 : x
  2. Step 2: Convert to fraction form
    83,146.60/124,719.90 = 62,410.60/x
  3. Step 3: Cross multiply
    83,146.60x = 124,719.90 × 62,410.60
  4. Step 4: Simplify right side
    83,146.60x = 7,783,843,790.94
  5. Step 5: Solve for x
    x = 7,783,843,790.94/83,146.60
  6. Step 6: Final answer
    x = 93,615.90

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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.