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Finding the Fourth Proportional to 186,508.75, 279,763.13 and 53,389.48

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Solution

The fourth proportional to 186,508.75, 279,763.13 and 53,389.48 is: 80,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,508.75 : 279,763.13 = 53,389.48 : x
  2. Step 2: Convert to fraction form
    186,508.75/279,763.13 = 53,389.48/x
  3. Step 3: Cross multiply
    186,508.75x = 279,763.13 × 53,389.48
  4. Step 4: Simplify right side
    186,508.75x = 14,936,408,033.87
  5. Step 5: Solve for x
    x = 14,936,408,033.87/186,508.75
  6. Step 6: Final answer
    x = 80,084.22

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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.