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Finding the Fourth Proportional to 52,896.65, 79,155.39 and 45,805.30

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Solution

The fourth proportional to 52,896.65, 79,155.39 and 45,805.30 is: 68,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,896.65 : 79,155.39 = 45,805.30 : x
  2. Step 2: Convert to fraction form
    52,896.65/79,155.39 = 45,805.30/x
  3. Step 3: Cross multiply
    52,896.65x = 79,155.39 × 45,805.30
  4. Step 4: Simplify right side
    52,896.65x = 3,625,736,385.57
  5. Step 5: Solve for x
    x = 3,625,736,385.57/52,896.65
  6. Step 6: Final answer
    x = 68,543.78

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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.