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Finding the Fourth Proportional to 144,634.60, 217,097.70 and 69,814.90

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Solution

The fourth proportional to 144,634.60, 217,097.70 and 69,814.90 is: 104,792.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,634.60 : 217,097.70 = 69,814.90 : x
  2. Step 2: Convert to fraction form
    144,634.60/217,097.70 = 69,814.90/x
  3. Step 3: Cross multiply
    144,634.60x = 217,097.70 × 69,814.90
  4. Step 4: Simplify right side
    144,634.60x = 15,156,654,215.73
  5. Step 5: Solve for x
    x = 15,156,654,215.73/144,634.60
  6. Step 6: Final answer
    x = 104,792.73

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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.