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Finding the Fourth Proportional to 220,598.30, 331,298.40 and 132,024.80

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Solution

The fourth proportional to 220,598.30, 331,298.40 and 132,024.80 is: 198,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,598.30 : 331,298.40 = 132,024.80 : x
  2. Step 2: Convert to fraction form
    220,598.30/331,298.40 = 132,024.80/x
  3. Step 3: Cross multiply
    220,598.30x = 331,298.40 × 132,024.80
  4. Step 4: Simplify right side
    220,598.30x = 43,739,605,000.32
  5. Step 5: Solve for x
    x = 43,739,605,000.32/220,598.30
  6. Step 6: Final answer
    x = 198,277.16

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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.