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Finding the Fourth Proportional to 136,454.68, 204,873.30 and 69,942.52

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Solution

The fourth proportional to 136,454.68, 204,873.30 and 69,942.52 is: 105,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,454.68 : 204,873.30 = 69,942.52 : x
  2. Step 2: Convert to fraction form
    136,454.68/204,873.30 = 69,942.52/x
  3. Step 3: Cross multiply
    136,454.68x = 204,873.30 × 69,942.52
  4. Step 4: Simplify right side
    136,454.68x = 14,329,354,882.72
  5. Step 5: Solve for x
    x = 14,329,354,882.72/136,454.68
  6. Step 6: Final answer
    x = 105,011.82

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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.