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Finding the Fourth Proportional to 60,200.82, 90,332.21 and 28,646.66

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Solution

The fourth proportional to 60,200.82, 90,332.21 and 28,646.66 is: 42,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,200.82 : 90,332.21 = 28,646.66 : x
  2. Step 2: Convert to fraction form
    60,200.82/90,332.21 = 28,646.66/x
  3. Step 3: Cross multiply
    60,200.82x = 90,332.21 × 28,646.66
  4. Step 4: Simplify right side
    60,200.82x = 2,587,716,404.37
  5. Step 5: Solve for x
    x = 2,587,716,404.37/60,200.82
  6. Step 6: Final answer
    x = 42,984.74

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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.