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Finding the Fourth Proportional to 171,642.80, 236,866.56 and 96,191.28

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Solution

The fourth proportional to 171,642.80, 236,866.56 and 96,191.28 is: 132,743.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,642.80 : 236,866.56 = 96,191.28 : x
  2. Step 2: Convert to fraction form
    171,642.80/236,866.56 = 96,191.28/x
  3. Step 3: Cross multiply
    171,642.80x = 236,866.56 × 96,191.28
  4. Step 4: Simplify right side
    171,642.80x = 22,784,497,595.60
  5. Step 5: Solve for x
    x = 22,784,497,595.60/171,642.80
  6. Step 6: Final answer
    x = 132,743.68

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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.