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Finding the Fourth Proportional to 186,310.10, 257,103.87 and 108,799.06

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Solution

The fourth proportional to 186,310.10, 257,103.87 and 108,799.06 is: 150,140.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,310.10 : 257,103.87 = 108,799.06 : x
  2. Step 2: Convert to fraction form
    186,310.10/257,103.87 = 108,799.06/x
  3. Step 3: Cross multiply
    186,310.10x = 257,103.87 × 108,799.06
  4. Step 4: Simplify right side
    186,310.10x = 27,972,659,378.36
  5. Step 5: Solve for x
    x = 27,972,659,378.36/186,310.10
  6. Step 6: Final answer
    x = 150,140.33

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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.