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Finding the Fourth Proportional to 59,642.60, 89,387.10 and 45,722.60

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Solution

The fourth proportional to 59,642.60, 89,387.10 and 45,722.60 is: 68,525.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,642.60 : 89,387.10 = 45,722.60 : x
  2. Step 2: Convert to fraction form
    59,642.60/89,387.10 = 45,722.60/x
  3. Step 3: Cross multiply
    59,642.60x = 89,387.10 × 45,722.60
  4. Step 4: Simplify right side
    59,642.60x = 4,087,010,618.46
  5. Step 5: Solve for x
    x = 4,087,010,618.46/59,642.60
  6. Step 6: Final answer
    x = 68,525.02

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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.