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Finding the Fourth Proportional to 186,363.20, 279,462.88 and 55,004.48

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Solution

The fourth proportional to 186,363.20, 279,462.88 and 55,004.48 is: 82,482.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,363.20 : 279,462.88 = 55,004.48 : x
  2. Step 2: Convert to fraction form
    186,363.20/279,462.88 = 55,004.48/x
  3. Step 3: Cross multiply
    186,363.20x = 279,462.88 × 55,004.48
  4. Step 4: Simplify right side
    186,363.20x = 15,371,710,393.70
  5. Step 5: Solve for x
    x = 15,371,710,393.70/186,363.20
  6. Step 6: Final answer
    x = 82,482.54

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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.