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Finding the Fourth Proportional to 171,952.20, 257,928.30 and 154,456.20

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Solution

The fourth proportional to 171,952.20, 257,928.30 and 154,456.20 is: 231,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,952.20 : 257,928.30 = 154,456.20 : x
  2. Step 2: Convert to fraction form
    171,952.20/257,928.30 = 154,456.20/x
  3. Step 3: Cross multiply
    171,952.20x = 257,928.30 × 154,456.20
  4. Step 4: Simplify right side
    171,952.20x = 39,838,625,090.46
  5. Step 5: Solve for x
    x = 39,838,625,090.46/171,952.20
  6. Step 6: Final answer
    x = 231,684.30

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1.5x scale

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.