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Finding the Fourth Proportional to 109,287.71, 150,812.98 and 60,888.50

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Solution

The fourth proportional to 109,287.71, 150,812.98 and 60,888.50 is: 84,023.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,287.71 : 150,812.98 = 60,888.50 : x
  2. Step 2: Convert to fraction form
    109,287.71/150,812.98 = 60,888.50/x
  3. Step 3: Cross multiply
    109,287.71x = 150,812.98 × 60,888.50
  4. Step 4: Simplify right side
    109,287.71x = 9,182,775,226.44
  5. Step 5: Solve for x
    x = 9,182,775,226.44/109,287.71
  6. Step 6: Final answer
    x = 84,023.86

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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.