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Finding the Fourth Proportional to 78,053.92, 107,687.86 and 44,058.40

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Solution

The fourth proportional to 78,053.92, 107,687.86 and 44,058.40 is: 60,785.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,053.92 : 107,687.86 = 44,058.40 : x
  2. Step 2: Convert to fraction form
    78,053.92/107,687.86 = 44,058.40/x
  3. Step 3: Cross multiply
    78,053.92x = 107,687.86 × 44,058.40
  4. Step 4: Simplify right side
    78,053.92x = 4,744,554,811.02
  5. Step 5: Solve for x
    x = 4,744,554,811.02/78,053.92
  6. Step 6: Final answer
    x = 60,785.61

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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.