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Finding the Fourth Proportional to 75,073.92, 103,507.92 and 48,168.96

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Solution

The fourth proportional to 75,073.92, 103,507.92 and 48,168.96 is: 66,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,073.92 : 103,507.92 = 48,168.96 : x
  2. Step 2: Convert to fraction form
    75,073.92/103,507.92 = 48,168.96/x
  3. Step 3: Cross multiply
    75,073.92x = 103,507.92 × 48,168.96
  4. Step 4: Simplify right side
    75,073.92x = 4,985,868,858.16
  5. Step 5: Solve for x
    x = 4,985,868,858.16/75,073.92
  6. Step 6: Final answer
    x = 66,412.79

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1.5x scale

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.