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Finding the Fourth Proportional to 71,028.70, 106,543.05 and 60,474.40

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Solution

The fourth proportional to 71,028.70, 106,543.05 and 60,474.40 is: 90,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,028.70 : 106,543.05 = 60,474.40 : x
  2. Step 2: Convert to fraction form
    71,028.70/106,543.05 = 60,474.40/x
  3. Step 3: Cross multiply
    71,028.70x = 106,543.05 × 60,474.40
  4. Step 4: Simplify right side
    71,028.70x = 6,443,127,022.92
  5. Step 5: Solve for x
    x = 6,443,127,022.92/71,028.70
  6. Step 6: Final answer
    x = 90,711.60

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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.