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Finding the Fourth Proportional to 235,995.52, 325,662.60 and 128,565.04

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Solution

The fourth proportional to 235,995.52, 325,662.60 and 128,565.04 is: 177,413.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,995.52 : 325,662.60 = 128,565.04 : x
  2. Step 2: Convert to fraction form
    235,995.52/325,662.60 = 128,565.04/x
  3. Step 3: Cross multiply
    235,995.52x = 325,662.60 × 128,565.04
  4. Step 4: Simplify right side
    235,995.52x = 41,868,825,195.50
  5. Step 5: Solve for x
    x = 41,868,825,195.50/235,995.52
  6. Step 6: Final answer
    x = 177,413.64

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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.