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Finding the Fourth Proportional to 368,753.45, 553,244.99 and 132,098.18

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Solution

The fourth proportional to 368,753.45, 553,244.99 and 132,098.18 is: 198,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,753.45 : 553,244.99 = 132,098.18 : x
  2. Step 2: Convert to fraction form
    368,753.45/553,244.99 = 132,098.18/x
  3. Step 3: Cross multiply
    368,753.45x = 553,244.99 × 132,098.18
  4. Step 4: Simplify right side
    368,753.45x = 73,082,656,273.12
  5. Step 5: Solve for x
    x = 73,082,656,273.12/368,753.45
  6. Step 6: Final answer
    x = 198,188.40

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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.