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Finding the Fourth Proportional to 75,871.80, 113,807.70 and 25,935.30

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Solution

The fourth proportional to 75,871.80, 113,807.70 and 25,935.30 is: 38,902.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,871.80 : 113,807.70 = 25,935.30 : x
  2. Step 2: Convert to fraction form
    75,871.80/113,807.70 = 25,935.30/x
  3. Step 3: Cross multiply
    75,871.80x = 113,807.70 × 25,935.30
  4. Step 4: Simplify right side
    75,871.80x = 2,951,636,841.81
  5. Step 5: Solve for x
    x = 2,951,636,841.81/75,871.80
  6. Step 6: Final answer
    x = 38,902.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.