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Finding the Fourth Proportional to 78,053.90, 107,687.84 and 44,058.38

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Solution

The fourth proportional to 78,053.90, 107,687.84 and 44,058.38 is: 60,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,053.90 : 107,687.84 = 44,058.38 : x
  2. Step 2: Convert to fraction form
    78,053.90/107,687.84 = 44,058.38/x
  3. Step 3: Cross multiply
    78,053.90x = 107,687.84 × 44,058.38
  4. Step 4: Simplify right side
    78,053.90x = 4,744,551,776.10
  5. Step 5: Solve for x
    x = 4,744,551,776.10/78,053.90
  6. Step 6: Final answer
    x = 60,785.58

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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.