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Finding the Fourth Proportional to 59,605.48, 89,290.14 and 40,839.40

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Solution

The fourth proportional to 59,605.48, 89,290.14 and 40,839.40 is: 61,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,605.48 : 89,290.14 = 40,839.40 : x
  2. Step 2: Convert to fraction form
    59,605.48/89,290.14 = 40,839.40/x
  3. Step 3: Cross multiply
    59,605.48x = 89,290.14 × 40,839.40
  4. Step 4: Simplify right side
    59,605.48x = 3,646,555,743.52
  5. Step 5: Solve for x
    x = 3,646,555,743.52/59,605.48
  6. Step 6: Final answer
    x = 61,178.20

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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.