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Finding the Fourth Proportional to 170,538.57, 255,662.01 and 65,432.97

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Solution

The fourth proportional to 170,538.57, 255,662.01 and 65,432.97 is: 98,093.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,538.57 : 255,662.01 = 65,432.97 : x
  2. Step 2: Convert to fraction form
    170,538.57/255,662.01 = 65,432.97/x
  3. Step 3: Cross multiply
    170,538.57x = 255,662.01 × 65,432.97
  4. Step 4: Simplify right side
    170,538.57x = 16,728,724,630.47
  5. Step 5: Solve for x
    x = 16,728,724,630.47/170,538.57
  6. Step 6: Final answer
    x = 98,093.50

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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.