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Finding the Fourth Proportional to 186,069.57, 279,104.43 and 45,828.20

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Solution

The fourth proportional to 186,069.57, 279,104.43 and 45,828.20 is: 68,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,069.57 : 279,104.43 = 45,828.20 : x
  2. Step 2: Convert to fraction form
    186,069.57/279,104.43 = 45,828.20/x
  3. Step 3: Cross multiply
    186,069.57x = 279,104.43 × 45,828.20
  4. Step 4: Simplify right side
    186,069.57x = 12,790,852,243.40
  5. Step 5: Solve for x
    x = 12,790,852,243.40/186,069.57
  6. Step 6: Final answer
    x = 68,742.31

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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.