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Finding the Fourth Proportional to 110,111.92, 151,965.06 and 61,713.61

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Solution

The fourth proportional to 110,111.92, 151,965.06 and 61,713.61 is: 85,170.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,111.92 : 151,965.06 = 61,713.61 : x
  2. Step 2: Convert to fraction form
    110,111.92/151,965.06 = 61,713.61/x
  3. Step 3: Cross multiply
    110,111.92x = 151,965.06 × 61,713.61
  4. Step 4: Simplify right side
    110,111.92x = 9,378,312,446.47
  5. Step 5: Solve for x
    x = 9,378,312,446.47/110,111.92
  6. Step 6: Final answer
    x = 85,170.73

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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.