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Finding the Fourth Proportional to 123,866.96, 170,936.68 and 67,277.12

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Solution

The fourth proportional to 123,866.96, 170,936.68 and 67,277.12 is: 92,842.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,866.96 : 170,936.68 = 67,277.12 : x
  2. Step 2: Convert to fraction form
    123,866.96/170,936.68 = 67,277.12/x
  3. Step 3: Cross multiply
    123,866.96x = 170,936.68 × 67,277.12
  4. Step 4: Simplify right side
    123,866.96x = 11,500,127,532.76
  5. Step 5: Solve for x
    x = 11,500,127,532.76/123,866.96
  6. Step 6: Final answer
    x = 92,842.58

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1.5x scale

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.