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Finding the Fourth Proportional to 124,091.92, 171,246.72 and 67,503.16

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Solution

The fourth proportional to 124,091.92, 171,246.72 and 67,503.16 is: 93,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,091.92 : 171,246.72 = 67,503.16 : x
  2. Step 2: Convert to fraction form
    124,091.92/171,246.72 = 67,503.16/x
  3. Step 3: Cross multiply
    124,091.92x = 171,246.72 × 67,503.16
  4. Step 4: Simplify right side
    124,091.92x = 11,559,694,739.64
  5. Step 5: Solve for x
    x = 11,559,694,739.64/124,091.92
  6. Step 6: Final answer
    x = 93,154.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.