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Finding the Fourth Proportional to 67,459.60, 101,189.40 and 47,760.40

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Solution

The fourth proportional to 67,459.60, 101,189.40 and 47,760.40 is: 71,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,459.60 : 101,189.40 = 47,760.40 : x
  2. Step 2: Convert to fraction form
    67,459.60/101,189.40 = 47,760.40/x
  3. Step 3: Cross multiply
    67,459.60x = 101,189.40 × 47,760.40
  4. Step 4: Simplify right side
    67,459.60x = 4,832,846,219.76
  5. Step 5: Solve for x
    x = 4,832,846,219.76/67,459.60
  6. Step 6: Final answer
    x = 71,640.60

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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.