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Finding the Fourth Proportional to 168,627.40, 253,232.70 and 89,895.40

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Solution

The fourth proportional to 168,627.40, 253,232.70 and 89,895.40 is: 134,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,627.40 : 253,232.70 = 89,895.40 : x
  2. Step 2: Convert to fraction form
    168,627.40/253,232.70 = 89,895.40/x
  3. Step 3: Cross multiply
    168,627.40x = 253,232.70 × 89,895.40
  4. Step 4: Simplify right side
    168,627.40x = 22,764,454,859.58
  5. Step 5: Solve for x
    x = 22,764,454,859.58/168,627.40
  6. Step 6: Final answer
    x = 134,998.55

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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.