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Finding the Fourth Proportional to 123,856.96, 170,922.92 and 67,267.12

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Solution

The fourth proportional to 123,856.96, 170,922.92 and 67,267.12 is: 92,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,856.96 : 170,922.92 = 67,267.12 : x
  2. Step 2: Convert to fraction form
    123,856.96/170,922.92 = 67,267.12/x
  3. Step 3: Cross multiply
    123,856.96x = 170,922.92 × 67,267.12
  4. Step 4: Simplify right side
    123,856.96x = 11,497,492,570.39
  5. Step 5: Solve for x
    x = 11,497,492,570.39/123,856.96
  6. Step 6: Final answer
    x = 92,828.80

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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.