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Finding the Fourth Proportional to 170,636.38, 235,489.21 and 98,062.61

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Solution

The fourth proportional to 170,636.38, 235,489.21 and 98,062.61 is: 135,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,636.38 : 235,489.21 = 98,062.61 : x
  2. Step 2: Convert to fraction form
    170,636.38/235,489.21 = 98,062.61/x
  3. Step 3: Cross multiply
    170,636.38x = 235,489.21 × 98,062.61
  4. Step 4: Simplify right side
    170,636.38x = 23,092,685,136.84
  5. Step 5: Solve for x
    x = 23,092,685,136.84/170,636.38
  6. Step 6: Final answer
    x = 135,332.72

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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.