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Finding the Fourth Proportional to 407,729.19, 611,546.22 and 108,233.04

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Solution

The fourth proportional to 407,729.19, 611,546.22 and 108,233.04 is: 162,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,729.19 : 611,546.22 = 108,233.04 : x
  2. Step 2: Convert to fraction form
    407,729.19/611,546.22 = 108,233.04/x
  3. Step 3: Cross multiply
    407,729.19x = 611,546.22 × 108,233.04
  4. Step 4: Simplify right side
    407,729.19x = 66,189,506,491.11
  5. Step 5: Solve for x
    x = 66,189,506,491.11/407,729.19
  6. Step 6: Final answer
    x = 162,336.93

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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.