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Finding the Fourth Proportional to 168,549.90, 253,116.45 and 89,817.90

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Solution

The fourth proportional to 168,549.90, 253,116.45 and 89,817.90 is: 134,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,549.90 : 253,116.45 = 89,817.90 : x
  2. Step 2: Convert to fraction form
    168,549.90/253,116.45 = 89,817.90/x
  3. Step 3: Cross multiply
    168,549.90x = 253,116.45 × 89,817.90
  4. Step 4: Simplify right side
    168,549.90x = 22,734,387,994.46
  5. Step 5: Solve for x
    x = 22,734,387,994.46/168,549.90
  6. Step 6: Final answer
    x = 134,882.24

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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.