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Finding the Fourth Proportional to 266,881.92, 400,323.57 and 98,329.21

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Solution

The fourth proportional to 266,881.92, 400,323.57 and 98,329.21 is: 147,494.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,881.92 : 400,323.57 = 98,329.21 : x
  2. Step 2: Convert to fraction form
    266,881.92/400,323.57 = 98,329.21/x
  3. Step 3: Cross multiply
    266,881.92x = 400,323.57 × 98,329.21
  4. Step 4: Simplify right side
    266,881.92x = 39,363,500,382.48
  5. Step 5: Solve for x
    x = 39,363,500,382.48/266,881.92
  6. Step 6: Final answer
    x = 147,494.07

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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.