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Finding the Fourth Proportional to 104,808.65, 157,221.88 and 92,473.97

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Solution

The fourth proportional to 104,808.65, 157,221.88 and 92,473.97 is: 138,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,808.65 : 157,221.88 = 92,473.97 : x
  2. Step 2: Convert to fraction form
    104,808.65/157,221.88 = 92,473.97/x
  3. Step 3: Cross multiply
    104,808.65x = 157,221.88 × 92,473.97
  4. Step 4: Simplify right side
    104,808.65x = 14,538,930,397.17
  5. Step 5: Solve for x
    x = 14,538,930,397.17/104,808.65
  6. Step 6: Final answer
    x = 138,718.81

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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.