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Finding the Fourth Proportional to 123,769.80, 185,654.70 and 73,250.10

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Solution

The fourth proportional to 123,769.80, 185,654.70 and 73,250.10 is: 109,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,769.80 : 185,654.70 = 73,250.10 : x
  2. Step 2: Convert to fraction form
    123,769.80/185,654.70 = 73,250.10/x
  3. Step 3: Cross multiply
    123,769.80x = 185,654.70 × 73,250.10
  4. Step 4: Simplify right side
    123,769.80x = 13,599,225,340.47
  5. Step 5: Solve for x
    x = 13,599,225,340.47/123,769.80
  6. Step 6: Final answer
    x = 109,875.15

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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.