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Finding the Fourth Proportional to 391,145.53, 586,623.47 and 106,837.41

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Solution

The fourth proportional to 391,145.53, 586,623.47 and 106,837.41 is: 160,230.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,145.53 : 586,623.47 = 106,837.41 : x
  2. Step 2: Convert to fraction form
    391,145.53/586,623.47 = 106,837.41/x
  3. Step 3: Cross multiply
    391,145.53x = 586,623.47 × 106,837.41
  4. Step 4: Simplify right side
    391,145.53x = 62,673,332,180.01
  5. Step 5: Solve for x
    x = 62,673,332,180.01/391,145.53
  6. Step 6: Final answer
    x = 160,230.21

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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.