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Finding the Fourth Proportional to 161,668.80, 223,103 and 93,725.16

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Solution

The fourth proportional to 161,668.80, 223,103 and 93,725.16 is: 129,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,668.80 : 223,103 = 93,725.16 : x
  2. Step 2: Convert to fraction form
    161,668.80/223,103 = 93,725.16/x
  3. Step 3: Cross multiply
    161,668.80x = 223,103 × 93,725.16
  4. Step 4: Simplify right side
    161,668.80x = 20,910,364,371.48
  5. Step 5: Solve for x
    x = 20,910,364,371.48/161,668.80
  6. Step 6: Final answer
    x = 129,340.75

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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.