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Finding the Fourth Proportional to 75,425.48, 112,965.96 and 36,010.40

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Solution

The fourth proportional to 75,425.48, 112,965.96 and 36,010.40 is: 53,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,425.48 : 112,965.96 = 36,010.40 : x
  2. Step 2: Convert to fraction form
    75,425.48/112,965.96 = 36,010.40/x
  3. Step 3: Cross multiply
    75,425.48x = 112,965.96 × 36,010.40
  4. Step 4: Simplify right side
    75,425.48x = 4,067,949,405.98
  5. Step 5: Solve for x
    x = 4,067,949,405.98/75,425.48
  6. Step 6: Final answer
    x = 53,933.36

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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.