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Finding the Fourth Proportional to 95,475.60, 142,921.80 and 74,480.40

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Solution

The fourth proportional to 95,475.60, 142,921.80 and 74,480.40 is: 111,493.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,475.60 : 142,921.80 = 74,480.40 : x
  2. Step 2: Convert to fraction form
    95,475.60/142,921.80 = 74,480.40/x
  3. Step 3: Cross multiply
    95,475.60x = 142,921.80 × 74,480.40
  4. Step 4: Simplify right side
    95,475.60x = 10,644,872,832.72
  5. Step 5: Solve for x
    x = 10,644,872,832.72/95,475.60
  6. Step 6: Final answer
    x = 111,493.12

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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.