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Finding the Fourth Proportional to 101,461.60, 140,049.52 and 71,254.24

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Solution

The fourth proportional to 101,461.60, 140,049.52 and 71,254.24 is: 98,353.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,461.60 : 140,049.52 = 71,254.24 : x
  2. Step 2: Convert to fraction form
    101,461.60/140,049.52 = 71,254.24/x
  3. Step 3: Cross multiply
    101,461.60x = 140,049.52 × 71,254.24
  4. Step 4: Simplify right side
    101,461.60x = 9,979,122,109.96
  5. Step 5: Solve for x
    x = 9,979,122,109.96/101,461.60
  6. Step 6: Final answer
    x = 98,353.68

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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.