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Finding the Fourth Proportional to 67,552.80, 101,365.68 and 28,137.12

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Solution

The fourth proportional to 67,552.80, 101,365.68 and 28,137.12 is: 42,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,552.80 : 101,365.68 = 28,137.12 : x
  2. Step 2: Convert to fraction form
    67,552.80/101,365.68 = 28,137.12/x
  3. Step 3: Cross multiply
    67,552.80x = 101,365.68 × 28,137.12
  4. Step 4: Simplify right side
    67,552.80x = 2,852,138,302.04
  5. Step 5: Solve for x
    x = 2,852,138,302.04/67,552.80
  6. Step 6: Final answer
    x = 42,220.87

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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.