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Finding the Fourth Proportional to 123,744.76, 170,765.94 and 70,039.96

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Solution

The fourth proportional to 123,744.76, 170,765.94 and 70,039.96 is: 96,654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,744.76 : 170,765.94 = 70,039.96 : x
  2. Step 2: Convert to fraction form
    123,744.76/170,765.94 = 70,039.96/x
  3. Step 3: Cross multiply
    123,744.76x = 170,765.94 × 70,039.96
  4. Step 4: Simplify right side
    123,744.76x = 11,960,439,606.96
  5. Step 5: Solve for x
    x = 11,960,439,606.96/123,744.76
  6. Step 6: Final answer
    x = 96,654.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.