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Finding the Fourth Proportional to 123,742.62, 170,767.37 and 70,027.62

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Solution

The fourth proportional to 123,742.62, 170,767.37 and 70,027.62 is: 96,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,742.62 : 170,767.37 = 70,027.62 : x
  2. Step 2: Convert to fraction form
    123,742.62/170,767.37 = 70,027.62/x
  3. Step 3: Cross multiply
    123,742.62x = 170,767.37 × 70,027.62
  4. Step 4: Simplify right side
    123,742.62x = 11,958,432,990.02
  5. Step 5: Solve for x
    x = 11,958,432,990.02/123,742.62
  6. Step 6: Final answer
    x = 96,639.57

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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.