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Finding the Fourth Proportional to 266,677.47, 400,016.58 and 108,905.92

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Solution

The fourth proportional to 266,677.47, 400,016.58 and 108,905.92 is: 163,359.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,677.47 : 400,016.58 = 108,905.92 : x
  2. Step 2: Convert to fraction form
    266,677.47/400,016.58 = 108,905.92/x
  3. Step 3: Cross multiply
    266,677.47x = 400,016.58 × 108,905.92
  4. Step 4: Simplify right side
    266,677.47x = 43,564,173,660.15
  5. Step 5: Solve for x
    x = 43,564,173,660.15/266,677.47
  6. Step 6: Final answer
    x = 163,359.03

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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.