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Finding the Fourth Proportional to 98,310.81, 147,127.38 and 60,334.88

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Solution

The fourth proportional to 98,310.81, 147,127.38 and 60,334.88 is: 90,294.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,310.81 : 147,127.38 = 60,334.88 : x
  2. Step 2: Convert to fraction form
    98,310.81/147,127.38 = 60,334.88/x
  3. Step 3: Cross multiply
    98,310.81x = 147,127.38 × 60,334.88
  4. Step 4: Simplify right side
    98,310.81x = 8,876,912,081.38
  5. Step 5: Solve for x
    x = 8,876,912,081.38/98,310.81
  6. Step 6: Final answer
    x = 90,294.36

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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.