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Finding the Fourth Proportional to 67,098.60, 100,842.30 and 65,932.20

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Solution

The fourth proportional to 67,098.60, 100,842.30 and 65,932.20 is: 99,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,098.60 : 100,842.30 = 65,932.20 : x
  2. Step 2: Convert to fraction form
    67,098.60/100,842.30 = 65,932.20/x
  3. Step 3: Cross multiply
    67,098.60x = 100,842.30 × 65,932.20
  4. Step 4: Simplify right side
    67,098.60x = 6,648,754,692.06
  5. Step 5: Solve for x
    x = 6,648,754,692.06/67,098.60
  6. Step 6: Final answer
    x = 99,089.32

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1.5x scale

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.