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Finding the Fourth Proportional to 117,813, 176,754.30 and 67,928.88

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Solution

The fourth proportional to 117,813, 176,754.30 and 67,928.88 is: 101,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,813 : 176,754.30 = 67,928.88 : x
  2. Step 2: Convert to fraction form
    117,813/176,754.30 = 67,928.88/x
  3. Step 3: Cross multiply
    117,813x = 176,754.30 × 67,928.88
  4. Step 4: Simplify right side
    117,813x = 12,006,721,634.18
  5. Step 5: Solve for x
    x = 12,006,721,634.18/117,813
  6. Step 6: Final answer
    x = 101,913.39

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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.