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Finding the Fourth Proportional to 52,390.59, 72,287.20 and 43,926.90

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Solution

The fourth proportional to 52,390.59, 72,287.20 and 43,926.90 is: 60,609.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,390.59 : 72,287.20 = 43,926.90 : x
  2. Step 2: Convert to fraction form
    52,390.59/72,287.20 = 43,926.90/x
  3. Step 3: Cross multiply
    52,390.59x = 72,287.20 × 43,926.90
  4. Step 4: Simplify right side
    52,390.59x = 3,175,352,605.68
  5. Step 5: Solve for x
    x = 3,175,352,605.68/52,390.59
  6. Step 6: Final answer
    x = 60,609.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.