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Finding the Fourth Proportional to 230,459.80, 345,632.10 and 88,274.20

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Solution

The fourth proportional to 230,459.80, 345,632.10 and 88,274.20 is: 132,389.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,459.80 : 345,632.10 = 88,274.20 : x
  2. Step 2: Convert to fraction form
    230,459.80/345,632.10 = 88,274.20/x
  3. Step 3: Cross multiply
    230,459.80x = 345,632.10 × 88,274.20
  4. Step 4: Simplify right side
    230,459.80x = 30,510,397,121.82
  5. Step 5: Solve for x
    x = 30,510,397,121.82/230,459.80
  6. Step 6: Final answer
    x = 132,389.24

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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.