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Finding the Fourth Proportional to 109,713.96, 151,405.56 and 59,412.96

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Solution

The fourth proportional to 109,713.96, 151,405.56 and 59,412.96 is: 81,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,713.96 : 151,405.56 = 59,412.96 : x
  2. Step 2: Convert to fraction form
    109,713.96/151,405.56 = 59,412.96/x
  3. Step 3: Cross multiply
    109,713.96x = 151,405.56 × 59,412.96
  4. Step 4: Simplify right side
    109,713.96x = 8,995,452,480.06
  5. Step 5: Solve for x
    x = 8,995,452,480.06/109,713.96
  6. Step 6: Final answer
    x = 81,990.04

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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.