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Finding the Fourth Proportional to 136,570.65, 205,948.87 and 134,700.76

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Solution

The fourth proportional to 136,570.65, 205,948.87 and 134,700.76 is: 203,129.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,570.65 : 205,948.87 = 134,700.76 : x
  2. Step 2: Convert to fraction form
    136,570.65/205,948.87 = 134,700.76/x
  3. Step 3: Cross multiply
    136,570.65x = 205,948.87 × 134,700.76
  4. Step 4: Simplify right side
    136,570.65x = 27,741,469,310.14
  5. Step 5: Solve for x
    x = 27,741,469,310.14/136,570.65
  6. Step 6: Final answer
    x = 203,129.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.