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Finding the Fourth Proportional to 541,100.40, 811,451.88 and 186,013.68

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Solution

The fourth proportional to 541,100.40, 811,451.88 and 186,013.68 is: 278,952.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,100.40 : 811,451.88 = 186,013.68 : x
  2. Step 2: Convert to fraction form
    541,100.40/811,451.88 = 186,013.68/x
  3. Step 3: Cross multiply
    541,100.40x = 811,451.88 × 186,013.68
  4. Step 4: Simplify right side
    541,100.40x = 150,941,150,341.72
  5. Step 5: Solve for x
    x = 150,941,150,341.72/541,100.40
  6. Step 6: Final answer
    x = 278,952.21

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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.