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Finding the Fourth Proportional to 109,041.56, 150,451.08 and 63,693.80

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Solution

The fourth proportional to 109,041.56, 150,451.08 and 63,693.80 is: 87,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,041.56 : 150,451.08 = 63,693.80 : x
  2. Step 2: Convert to fraction form
    109,041.56/150,451.08 = 63,693.80/x
  3. Step 3: Cross multiply
    109,041.56x = 150,451.08 × 63,693.80
  4. Step 4: Simplify right side
    109,041.56x = 9,582,800,999.30
  5. Step 5: Solve for x
    x = 9,582,800,999.30/109,041.56
  6. Step 6: Final answer
    x = 87,882.10

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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.