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Finding the Fourth Proportional to 448,405.92, 672,626.70 and 178,585.20

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Solution

The fourth proportional to 448,405.92, 672,626.70 and 178,585.20 is: 267,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,405.92 : 672,626.70 = 178,585.20 : x
  2. Step 2: Convert to fraction form
    448,405.92/672,626.70 = 178,585.20/x
  3. Step 3: Cross multiply
    448,405.92x = 672,626.70 × 178,585.20
  4. Step 4: Simplify right side
    448,405.92x = 120,121,173,744.84
  5. Step 5: Solve for x
    x = 120,121,173,744.84/448,405.92
  6. Step 6: Final answer
    x = 267,884.90

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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.