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Finding the Fourth Proportional to 68,008.32, 101,925.84 and 38,442.60

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Solution

The fourth proportional to 68,008.32, 101,925.84 and 38,442.60 is: 57,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,008.32 : 101,925.84 = 38,442.60 : x
  2. Step 2: Convert to fraction form
    68,008.32/101,925.84 = 38,442.60/x
  3. Step 3: Cross multiply
    68,008.32x = 101,925.84 × 38,442.60
  4. Step 4: Simplify right side
    68,008.32x = 3,918,294,296.78
  5. Step 5: Solve for x
    x = 3,918,294,296.78/68,008.32
  6. Step 6: Final answer
    x = 57,614.93

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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.