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Finding the Fourth Proportional to 186,886.31, 280,042.41 and 126,836.75

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Solution

The fourth proportional to 186,886.31, 280,042.41 and 126,836.75 is: 190,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,886.31 : 280,042.41 = 126,836.75 : x
  2. Step 2: Convert to fraction form
    186,886.31/280,042.41 = 126,836.75/x
  3. Step 3: Cross multiply
    186,886.31x = 280,042.41 × 126,836.75
  4. Step 4: Simplify right side
    186,886.31x = 35,519,667,746.36
  5. Step 5: Solve for x
    x = 35,519,667,746.36/186,886.31
  6. Step 6: Final answer
    x = 190,060.30

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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.