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Finding the Fourth Proportional to 123,840.96, 170,895.96 and 67,251.12

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Solution

The fourth proportional to 123,840.96, 170,895.96 and 67,251.12 is: 92,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,840.96 : 170,895.96 = 67,251.12 : x
  2. Step 2: Convert to fraction form
    123,840.96/170,895.96 = 67,251.12/x
  3. Step 3: Cross multiply
    123,840.96x = 170,895.96 × 67,251.12
  4. Step 4: Simplify right side
    123,840.96x = 11,492,944,713.48
  5. Step 5: Solve for x
    x = 11,492,944,713.48/123,840.96
  6. Step 6: Final answer
    x = 92,804.07

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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.