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Finding the Fourth Proportional to 266,953.25, 400,465.11 and 98,591.92

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Solution

The fourth proportional to 266,953.25, 400,465.11 and 98,591.92 is: 147,900.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,953.25 : 400,465.11 = 98,591.92 : x
  2. Step 2: Convert to fraction form
    266,953.25/400,465.11 = 98,591.92/x
  3. Step 3: Cross multiply
    266,953.25x = 400,465.11 × 98,591.92
  4. Step 4: Simplify right side
    266,953.25x = 39,482,623,456.47
  5. Step 5: Solve for x
    x = 39,482,623,456.47/266,953.25
  6. Step 6: Final answer
    x = 147,900.89

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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.