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Finding the Fourth Proportional to 73,624.80, 110,552.40 and 42,520.80

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Solution

The fourth proportional to 73,624.80, 110,552.40 and 42,520.80 is: 63,847.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,624.80 : 110,552.40 = 42,520.80 : x
  2. Step 2: Convert to fraction form
    73,624.80/110,552.40 = 42,520.80/x
  3. Step 3: Cross multiply
    73,624.80x = 110,552.40 × 42,520.80
  4. Step 4: Simplify right side
    73,624.80x = 4,700,776,489.92
  5. Step 5: Solve for x
    x = 4,700,776,489.92/73,624.80
  6. Step 6: Final answer
    x = 63,847.73

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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.