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Finding the Fourth Proportional to 67,379.20, 101,068.80 and 64,098.70

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Solution

The fourth proportional to 67,379.20, 101,068.80 and 64,098.70 is: 96,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,379.20 : 101,068.80 = 64,098.70 : x
  2. Step 2: Convert to fraction form
    67,379.20/101,068.80 = 64,098.70/x
  3. Step 3: Cross multiply
    67,379.20x = 101,068.80 × 64,098.70
  4. Step 4: Simplify right side
    67,379.20x = 6,478,378,690.56
  5. Step 5: Solve for x
    x = 6,478,378,690.56/67,379.20
  6. Step 6: Final answer
    x = 96,148.05

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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.