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Finding the Fourth Proportional to 75,062.52, 112,593.84 and 18,902.64

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Solution

The fourth proportional to 75,062.52, 112,593.84 and 18,902.64 is: 28,353.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,062.52 : 112,593.84 = 18,902.64 : x
  2. Step 2: Convert to fraction form
    75,062.52/112,593.84 = 18,902.64/x
  3. Step 3: Cross multiply
    75,062.52x = 112,593.84 × 18,902.64
  4. Step 4: Simplify right side
    75,062.52x = 2,128,320,823.74
  5. Step 5: Solve for x
    x = 2,128,320,823.74/75,062.52
  6. Step 6: Final answer
    x = 28,353.98

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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.