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Finding the Fourth Proportional to 78,052.92, 107,686.48 and 44,057.40

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Solution

The fourth proportional to 78,052.92, 107,686.48 and 44,057.40 is: 60,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,052.92 : 107,686.48 = 44,057.40 : x
  2. Step 2: Convert to fraction form
    78,052.92/107,686.48 = 44,057.40/x
  3. Step 3: Cross multiply
    78,052.92x = 107,686.48 × 44,057.40
  4. Step 4: Simplify right side
    78,052.92x = 4,744,386,323.95
  5. Step 5: Solve for x
    x = 4,744,386,323.95/78,052.92
  6. Step 6: Final answer
    x = 60,784.23

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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.