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Finding the Fourth Proportional to 71,382.08, 107,051.12 and 49,337.12

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Solution

The fourth proportional to 71,382.08, 107,051.12 and 49,337.12 is: 73,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,382.08 : 107,051.12 = 49,337.12 : x
  2. Step 2: Convert to fraction form
    71,382.08/107,051.12 = 49,337.12/x
  3. Step 3: Cross multiply
    71,382.08x = 107,051.12 × 49,337.12
  4. Step 4: Simplify right side
    71,382.08x = 5,281,593,953.57
  5. Step 5: Solve for x
    x = 5,281,593,953.57/71,382.08
  6. Step 6: Final answer
    x = 73,990.47

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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.