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Finding the Fourth Proportional to 117,527.34, 162,213.30 and 72,229.08

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Solution

The fourth proportional to 117,527.34, 162,213.30 and 72,229.08 is: 99,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,527.34 : 162,213.30 = 72,229.08 : x
  2. Step 2: Convert to fraction form
    117,527.34/162,213.30 = 72,229.08/x
  3. Step 3: Cross multiply
    117,527.34x = 162,213.30 × 72,229.08
  4. Step 4: Simplify right side
    117,527.34x = 11,716,517,422.76
  5. Step 5: Solve for x
    x = 11,716,517,422.76/117,527.34
  6. Step 6: Final answer
    x = 99,691.85

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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.