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Finding the Fourth Proportional to 122,523.20, 171,882.40 and 122,523.20

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Solution

The fourth proportional to 122,523.20, 171,882.40 and 122,523.20 is: 171,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,523.20 : 171,882.40 = 122,523.20 : x
  2. Step 2: Convert to fraction form
    122,523.20/171,882.40 = 122,523.20/x
  3. Step 3: Cross multiply
    122,523.20x = 171,882.40 × 122,523.20
  4. Step 4: Simplify right side
    122,523.20x = 21,059,581,671.68
  5. Step 5: Solve for x
    x = 21,059,581,671.68/122,523.20
  6. Step 6: Final answer
    x = 171,882.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.