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Finding the Fourth Proportional to 454,665.81, 681,800.90 and 130,382.49

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Solution

The fourth proportional to 454,665.81, 681,800.90 and 130,382.49 is: 195,517.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,665.81 : 681,800.90 = 130,382.49 : x
  2. Step 2: Convert to fraction form
    454,665.81/681,800.90 = 130,382.49/x
  3. Step 3: Cross multiply
    454,665.81x = 681,800.90 × 130,382.49
  4. Step 4: Simplify right side
    454,665.81x = 88,894,898,374.33
  5. Step 5: Solve for x
    x = 88,894,898,374.33/454,665.81
  6. Step 6: Final answer
    x = 195,517.01

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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.