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Finding the Fourth Proportional to 75,020.52, 103,531.08 and 41,031.32

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Solution

The fourth proportional to 75,020.52, 103,531.08 and 41,031.32 is: 56,624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,020.52 : 103,531.08 = 41,031.32 : x
  2. Step 2: Convert to fraction form
    75,020.52/103,531.08 = 41,031.32/x
  3. Step 3: Cross multiply
    75,020.52x = 103,531.08 × 41,031.32
  4. Step 4: Simplify right side
    75,020.52x = 4,248,016,873.43
  5. Step 5: Solve for x
    x = 4,248,016,873.43/75,020.52
  6. Step 6: Final answer
    x = 56,624.73

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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.