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Finding the Fourth Proportional to 230,039.43, 345,129.56 and 117,799.11

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Solution

The fourth proportional to 230,039.43, 345,129.56 and 117,799.11 is: 176,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,039.43 : 345,129.56 = 117,799.11 : x
  2. Step 2: Convert to fraction form
    230,039.43/345,129.56 = 117,799.11/x
  3. Step 3: Cross multiply
    230,039.43x = 345,129.56 × 117,799.11
  4. Step 4: Simplify right side
    230,039.43x = 40,655,954,413.70
  5. Step 5: Solve for x
    x = 40,655,954,413.70/230,039.43
  6. Step 6: Final answer
    x = 176,734.72

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1.5x scale

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.