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Finding the Fourth Proportional to 171,868.54, 237,207.08 and 100,248.56

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Solution

The fourth proportional to 171,868.54, 237,207.08 and 100,248.56 is: 138,359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,868.54 : 237,207.08 = 100,248.56 : x
  2. Step 2: Convert to fraction form
    171,868.54/237,207.08 = 100,248.56/x
  3. Step 3: Cross multiply
    171,868.54x = 237,207.08 × 100,248.56
  4. Step 4: Simplify right side
    171,868.54x = 23,779,668,191.80
  5. Step 5: Solve for x
    x = 23,779,668,191.80/171,868.54
  6. Step 6: Final answer
    x = 138,359.63

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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.