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Finding the Fourth Proportional to 266,814.68, 400,275.56 and 98,335.84

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Solution

The fourth proportional to 266,814.68, 400,275.56 and 98,335.84 is: 147,523.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,814.68 : 400,275.56 = 98,335.84 : x
  2. Step 2: Convert to fraction form
    266,814.68/400,275.56 = 98,335.84/x
  3. Step 3: Cross multiply
    266,814.68x = 400,275.56 × 98,335.84
  4. Step 4: Simplify right side
    266,814.68x = 39,361,431,592.79
  5. Step 5: Solve for x
    x = 39,361,431,592.79/266,814.68
  6. Step 6: Final answer
    x = 147,523.48

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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.