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Finding the Fourth Proportional to 60,242.34, 90,240.39 and 28,175.52

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Solution

The fourth proportional to 60,242.34, 90,240.39 and 28,175.52 is: 42,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,242.34 : 90,240.39 = 28,175.52 : x
  2. Step 2: Convert to fraction form
    60,242.34/90,240.39 = 28,175.52/x
  3. Step 3: Cross multiply
    60,242.34x = 90,240.39 × 28,175.52
  4. Step 4: Simplify right side
    60,242.34x = 2,542,569,913.25
  5. Step 5: Solve for x
    x = 2,542,569,913.25/60,242.34
  6. Step 6: Final answer
    x = 42,205.70

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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.