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Finding the Fourth Proportional to 109,760.50, 151,471.11 and 59,459.50

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Solution

The fourth proportional to 109,760.50, 151,471.11 and 59,459.50 is: 82,054.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,760.50 : 151,471.11 = 59,459.50 : x
  2. Step 2: Convert to fraction form
    109,760.50/151,471.11 = 59,459.50/x
  3. Step 3: Cross multiply
    109,760.50x = 151,471.11 × 59,459.50
  4. Step 4: Simplify right side
    109,760.50x = 9,006,396,465.05
  5. Step 5: Solve for x
    x = 9,006,396,465.05/109,760.50
  6. Step 6: Final answer
    x = 82,054.99

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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.