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Finding the Fourth Proportional to 75,301.66, 112,957.90 and 22,711.60

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Solution

The fourth proportional to 75,301.66, 112,957.90 and 22,711.60 is: 34,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,301.66 : 112,957.90 = 22,711.60 : x
  2. Step 2: Convert to fraction form
    75,301.66/112,957.90 = 22,711.60/x
  3. Step 3: Cross multiply
    75,301.66x = 112,957.90 × 22,711.60
  4. Step 4: Simplify right side
    75,301.66x = 2,565,454,641.64
  5. Step 5: Solve for x
    x = 2,565,454,641.64/75,301.66
  6. Step 6: Final answer
    x = 34,069.03

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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.