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Finding the Fourth Proportional to 266,874.71, 400,249.17 and 98,303.49

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Solution

The fourth proportional to 266,874.71, 400,249.17 and 98,303.49 is: 147,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,874.71 : 400,249.17 = 98,303.49 : x
  2. Step 2: Convert to fraction form
    266,874.71/400,249.17 = 98,303.49/x
  3. Step 3: Cross multiply
    266,874.71x = 400,249.17 × 98,303.49
  4. Step 4: Simplify right side
    266,874.71x = 39,345,890,280.60
  5. Step 5: Solve for x
    x = 39,345,890,280.60/266,874.71
  6. Step 6: Final answer
    x = 147,432.07

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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.