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Finding the Fourth Proportional to 123,793.32, 170,975.48 and 83,437.52

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Solution

The fourth proportional to 123,793.32, 170,975.48 and 83,437.52 is: 115,238.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,793.32 : 170,975.48 = 83,437.52 : x
  2. Step 2: Convert to fraction form
    123,793.32/170,975.48 = 83,437.52/x
  3. Step 3: Cross multiply
    123,793.32x = 170,975.48 × 83,437.52
  4. Step 4: Simplify right side
    123,793.32x = 14,265,770,032.01
  5. Step 5: Solve for x
    x = 14,265,770,032.01/123,793.32
  6. Step 6: Final answer
    x = 115,238.61

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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.