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Finding the Fourth Proportional to 235,990.92, 325,666.20 and 128,560.70

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Solution

The fourth proportional to 235,990.92, 325,666.20 and 128,560.70 is: 177,413.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,990.92 : 325,666.20 = 128,560.70 : x
  2. Step 2: Convert to fraction form
    235,990.92/325,666.20 = 128,560.70/x
  3. Step 3: Cross multiply
    235,990.92x = 325,666.20 × 128,560.70
  4. Step 4: Simplify right side
    235,990.92x = 41,867,874,638.34
  5. Step 5: Solve for x
    x = 41,867,874,638.34/235,990.92
  6. Step 6: Final answer
    x = 177,413.07

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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.