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Finding the Fourth Proportional to 400,233.09, 600,263.29 and 126,700.90

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Solution

The fourth proportional to 400,233.09, 600,263.29 and 126,700.90 is: 190,024.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,233.09 : 600,263.29 = 126,700.90 : x
  2. Step 2: Convert to fraction form
    400,233.09/600,263.29 = 126,700.90/x
  3. Step 3: Cross multiply
    400,233.09x = 600,263.29 × 126,700.90
  4. Step 4: Simplify right side
    400,233.09x = 76,053,899,079.96
  5. Step 5: Solve for x
    x = 76,053,899,079.96/400,233.09
  6. Step 6: Final answer
    x = 190,024.02

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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.