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Finding the Fourth Proportional to 186,882.75, 280,440.78 and 76,074.75

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Solution

The fourth proportional to 186,882.75, 280,440.78 and 76,074.75 is: 114,159.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,882.75 : 280,440.78 = 76,074.75 : x
  2. Step 2: Convert to fraction form
    186,882.75/280,440.78 = 76,074.75/x
  3. Step 3: Cross multiply
    186,882.75x = 280,440.78 × 76,074.75
  4. Step 4: Simplify right side
    186,882.75x = 21,334,462,228.31
  5. Step 5: Solve for x
    x = 21,334,462,228.31/186,882.75
  6. Step 6: Final answer
    x = 114,159.61

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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.