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Finding the Fourth Proportional to 201,449.39, 278,095.23 and 127,898.76

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Solution

The fourth proportional to 201,449.39, 278,095.23 and 127,898.76 is: 176,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,449.39 : 278,095.23 = 127,898.76 : x
  2. Step 2: Convert to fraction form
    201,449.39/278,095.23 = 127,898.76/x
  3. Step 3: Cross multiply
    201,449.39x = 278,095.23 × 127,898.76
  4. Step 4: Simplify right side
    201,449.39x = 35,568,034,439.42
  5. Step 5: Solve for x
    x = 35,568,034,439.42/201,449.39
  6. Step 6: Final answer
    x = 176,560.65

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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.