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Finding the Fourth Proportional to 97,442.52, 134,399.68 and 74,524.11

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Solution

The fourth proportional to 97,442.52, 134,399.68 and 74,524.11 is: 102,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,442.52 : 134,399.68 = 74,524.11 : x
  2. Step 2: Convert to fraction form
    97,442.52/134,399.68 = 74,524.11/x
  3. Step 3: Cross multiply
    97,442.52x = 134,399.68 × 74,524.11
  4. Step 4: Simplify right side
    97,442.52x = 10,016,016,536.28
  5. Step 5: Solve for x
    x = 10,016,016,536.28/97,442.52
  6. Step 6: Final answer
    x = 102,788.97

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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.