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Finding the Fourth Proportional to 60,122.80, 90,206.08 and 28,542.52

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Solution

The fourth proportional to 60,122.80, 90,206.08 and 28,542.52 is: 42,824.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,122.80 : 90,206.08 = 28,542.52 : x
  2. Step 2: Convert to fraction form
    60,122.80/90,206.08 = 28,542.52/x
  3. Step 3: Cross multiply
    60,122.80x = 90,206.08 × 28,542.52
  4. Step 4: Simplify right side
    60,122.80x = 2,574,708,842.52
  5. Step 5: Solve for x
    x = 2,574,708,842.52/60,122.80
  6. Step 6: Final answer
    x = 42,824.17

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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.