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Finding the Fourth Proportional to 186,441.75, 279,706.37 and 61,782.75

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Solution

The fourth proportional to 186,441.75, 279,706.37 and 61,782.75 is: 92,688.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,441.75 : 279,706.37 = 61,782.75 : x
  2. Step 2: Convert to fraction form
    186,441.75/279,706.37 = 61,782.75/x
  3. Step 3: Cross multiply
    186,441.75x = 279,706.37 × 61,782.75
  4. Step 4: Simplify right side
    186,441.75x = 17,281,028,422.20
  5. Step 5: Solve for x
    x = 17,281,028,422.20/186,441.75
  6. Step 6: Final answer
    x = 92,688.62

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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.