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Finding the Fourth Proportional to 117,353.10, 175,742.56 and 105,980.70

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Solution

The fourth proportional to 117,353.10, 175,742.56 and 105,980.70 is: 158,711.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,353.10 : 175,742.56 = 105,980.70 : x
  2. Step 2: Convert to fraction form
    117,353.10/175,742.56 = 105,980.70/x
  3. Step 3: Cross multiply
    117,353.10x = 175,742.56 × 105,980.70
  4. Step 4: Simplify right side
    117,353.10x = 18,625,318,998.69
  5. Step 5: Solve for x
    x = 18,625,318,998.69/117,353.10
  6. Step 6: Final answer
    x = 158,711.78

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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.