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Finding the Fourth Proportional to 75,187.52, 103,711.80 and 48,364.96

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Solution

The fourth proportional to 75,187.52, 103,711.80 and 48,364.96 is: 66,713.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,187.52 : 103,711.80 = 48,364.96 : x
  2. Step 2: Convert to fraction form
    75,187.52/103,711.80 = 48,364.96/x
  3. Step 3: Cross multiply
    75,187.52x = 103,711.80 × 48,364.96
  4. Step 4: Simplify right side
    75,187.52x = 5,016,017,058.53
  5. Step 5: Solve for x
    x = 5,016,017,058.53/75,187.52
  6. Step 6: Final answer
    x = 66,713.43

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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.