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Finding the Fourth Proportional to 186,360.80, 279,584.52 and 53,242.88

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Solution

The fourth proportional to 186,360.80, 279,584.52 and 53,242.88 is: 79,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,360.80 : 279,584.52 = 53,242.88 : x
  2. Step 2: Convert to fraction form
    186,360.80/279,584.52 = 53,242.88/x
  3. Step 3: Cross multiply
    186,360.80x = 279,584.52 × 53,242.88
  4. Step 4: Simplify right side
    186,360.80x = 14,885,885,048.22
  5. Step 5: Solve for x
    x = 14,885,885,048.22/186,360.80
  6. Step 6: Final answer
    x = 79,876.70

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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.