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Finding the Fourth Proportional to 136,452.68, 204,870.30 and 69,940.52

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Solution

The fourth proportional to 136,452.68, 204,870.30 and 69,940.52 is: 105,008.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,452.68 : 204,870.30 = 69,940.52 : x
  2. Step 2: Convert to fraction form
    136,452.68/204,870.30 = 69,940.52/x
  3. Step 3: Cross multiply
    136,452.68x = 204,870.30 × 69,940.52
  4. Step 4: Simplify right side
    136,452.68x = 14,328,735,314.56
  5. Step 5: Solve for x
    x = 14,328,735,314.56/136,452.68
  6. Step 6: Final answer
    x = 105,008.82

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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.