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Finding the Fourth Proportional to 252,071.75, 347,854.92 and 137,351.92

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Solution

The fourth proportional to 252,071.75, 347,854.92 and 137,351.92 is: 189,543.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,071.75 : 347,854.92 = 137,351.92 : x
  2. Step 2: Convert to fraction form
    252,071.75/347,854.92 = 137,351.92/x
  3. Step 3: Cross multiply
    252,071.75x = 347,854.92 × 137,351.92
  4. Step 4: Simplify right side
    252,071.75x = 47,778,540,273.81
  5. Step 5: Solve for x
    x = 47,778,540,273.81/252,071.75
  6. Step 6: Final answer
    x = 189,543.42

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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.