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Finding the Fourth Proportional to 445,079.04, 667,619.84 and 112,654.72

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Solution

The fourth proportional to 445,079.04, 667,619.84 and 112,654.72 is: 168,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,079.04 : 667,619.84 = 112,654.72 : x
  2. Step 2: Convert to fraction form
    445,079.04/667,619.84 = 112,654.72/x
  3. Step 3: Cross multiply
    445,079.04x = 667,619.84 × 112,654.72
  4. Step 4: Simplify right side
    445,079.04x = 75,210,526,141.64
  5. Step 5: Solve for x
    x = 75,210,526,141.64/445,079.04
  6. Step 6: Final answer
    x = 168,982.40

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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.