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Finding the Fourth Proportional to 60,175.88, 90,265.91 and 28,569.68

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Solution

The fourth proportional to 60,175.88, 90,265.91 and 28,569.68 is: 42,855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,175.88 : 90,265.91 = 28,569.68 : x
  2. Step 2: Convert to fraction form
    60,175.88/90,265.91 = 28,569.68/x
  3. Step 3: Cross multiply
    60,175.88x = 90,265.91 × 28,569.68
  4. Step 4: Simplify right side
    60,175.88x = 2,578,867,569.43
  5. Step 5: Solve for x
    x = 2,578,867,569.43/60,175.88
  6. Step 6: Final answer
    x = 42,855.51

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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.