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Finding the Fourth Proportional to 117,882.08, 162,679.92 and 66,898.16

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Solution

The fourth proportional to 117,882.08, 162,679.92 and 66,898.16 is: 92,320.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,882.08 : 162,679.92 = 66,898.16 : x
  2. Step 2: Convert to fraction form
    117,882.08/162,679.92 = 66,898.16/x
  3. Step 3: Cross multiply
    117,882.08x = 162,679.92 × 66,898.16
  4. Step 4: Simplify right side
    117,882.08x = 10,882,987,316.95
  5. Step 5: Solve for x
    x = 10,882,987,316.95/117,882.08
  6. Step 6: Final answer
    x = 92,320.96

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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.