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Finding the Fourth Proportional to 71,415.96, 107,096.19 and 38,117.88

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Solution

The fourth proportional to 71,415.96, 107,096.19 and 38,117.88 is: 57,162.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,415.96 : 107,096.19 = 38,117.88 : x
  2. Step 2: Convert to fraction form
    71,415.96/107,096.19 = 38,117.88/x
  3. Step 3: Cross multiply
    71,415.96x = 107,096.19 × 38,117.88
  4. Step 4: Simplify right side
    71,415.96x = 4,082,279,718.88
  5. Step 5: Solve for x
    x = 4,082,279,718.88/71,415.96
  6. Step 6: Final answer
    x = 57,162.01

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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.