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Finding the Fourth Proportional to 117,970.97, 176,808.76 and 92,912.06

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Solution

The fourth proportional to 117,970.97, 176,808.76 and 92,912.06 is: 139,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,970.97 : 176,808.76 = 92,912.06 : x
  2. Step 2: Convert to fraction form
    117,970.97/176,808.76 = 92,912.06/x
  3. Step 3: Cross multiply
    117,970.97x = 176,808.76 × 92,912.06
  4. Step 4: Simplify right side
    117,970.97x = 16,427,666,327.39
  5. Step 5: Solve for x
    x = 16,427,666,327.39/117,970.97
  6. Step 6: Final answer
    x = 139,251.78

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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.