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Finding the Fourth Proportional to 100,059.48, 150,089.22 and 40,115.16

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Solution

The fourth proportional to 100,059.48, 150,089.22 and 40,115.16 is: 60,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,059.48 : 150,089.22 = 40,115.16 : x
  2. Step 2: Convert to fraction form
    100,059.48/150,089.22 = 40,115.16/x
  3. Step 3: Cross multiply
    100,059.48x = 150,089.22 × 40,115.16
  4. Step 4: Simplify right side
    100,059.48x = 6,020,853,074.58
  5. Step 5: Solve for x
    x = 6,020,853,074.58/100,059.48
  6. Step 6: Final answer
    x = 60,172.74

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.