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Finding the Fourth Proportional to 168,404.40, 252,898.20 and 89,672.40

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Solution

The fourth proportional to 168,404.40, 252,898.20 and 89,672.40 is: 134,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,404.40 : 252,898.20 = 89,672.40 : x
  2. Step 2: Convert to fraction form
    168,404.40/252,898.20 = 89,672.40/x
  3. Step 3: Cross multiply
    168,404.40x = 252,898.20 × 89,672.40
  4. Step 4: Simplify right side
    168,404.40x = 22,677,988,549.68
  5. Step 5: Solve for x
    x = 22,677,988,549.68/168,404.40
  6. Step 6: Final answer
    x = 134,663.87

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1.5x scale

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.