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Finding the Fourth Proportional to 186,894.56, 280,339.20 and 86,998.88

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Solution

The fourth proportional to 186,894.56, 280,339.20 and 86,998.88 is: 130,497.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,894.56 : 280,339.20 = 86,998.88 : x
  2. Step 2: Convert to fraction form
    186,894.56/280,339.20 = 86,998.88/x
  3. Step 3: Cross multiply
    186,894.56x = 280,339.20 × 86,998.88
  4. Step 4: Simplify right side
    186,894.56x = 24,389,197,120.94
  5. Step 5: Solve for x
    x = 24,389,197,120.94/186,894.56
  6. Step 6: Final answer
    x = 130,497.09

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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.