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Finding the Fourth Proportional to 235,148.80, 324,516.56 and 144,508.56

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Solution

The fourth proportional to 235,148.80, 324,516.56 and 144,508.56 is: 199,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,148.80 : 324,516.56 = 144,508.56 : x
  2. Step 2: Convert to fraction form
    235,148.80/324,516.56 = 144,508.56/x
  3. Step 3: Cross multiply
    235,148.80x = 324,516.56 × 144,508.56
  4. Step 4: Simplify right side
    235,148.80x = 46,895,420,781.75
  5. Step 5: Solve for x
    x = 46,895,420,781.75/235,148.80
  6. Step 6: Final answer
    x = 199,428.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.