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Finding the Fourth Proportional to 391,147.04, 586,625.72 and 106,838.92

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Solution

The fourth proportional to 391,147.04, 586,625.72 and 106,838.92 is: 160,232.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,147.04 : 586,625.72 = 106,838.92 : x
  2. Step 2: Convert to fraction form
    391,147.04/586,625.72 = 106,838.92/x
  3. Step 3: Cross multiply
    391,147.04x = 586,625.72 × 106,838.92
  4. Step 4: Simplify right side
    391,147.04x = 62,674,458,369.02
  5. Step 5: Solve for x
    x = 62,674,458,369.02/391,147.04
  6. Step 6: Final answer
    x = 160,232.48

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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.