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Finding the Fourth Proportional to 73,659.30, 101,649.85 and 40,125.30

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Solution

The fourth proportional to 73,659.30, 101,649.85 and 40,125.30 is: 55,372.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,659.30 : 101,649.85 = 40,125.30 : x
  2. Step 2: Convert to fraction form
    73,659.30/101,649.85 = 40,125.30/x
  3. Step 3: Cross multiply
    73,659.30x = 101,649.85 × 40,125.30
  4. Step 4: Simplify right side
    73,659.30x = 4,078,730,244.70
  5. Step 5: Solve for x
    x = 4,078,730,244.70/73,659.30
  6. Step 6: Final answer
    x = 55,372.92

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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.