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Finding the Fourth Proportional to 363,555.60, 544,879.80 and 186,133.20

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Solution

The fourth proportional to 363,555.60, 544,879.80 and 186,133.20 is: 278,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,555.60 : 544,879.80 = 186,133.20 : x
  2. Step 2: Convert to fraction form
    363,555.60/544,879.80 = 186,133.20/x
  3. Step 3: Cross multiply
    363,555.60x = 544,879.80 × 186,133.20
  4. Step 4: Simplify right side
    363,555.60x = 101,420,220,789.36
  5. Step 5: Solve for x
    x = 101,420,220,789.36/363,555.60
  6. Step 6: Final answer
    x = 278,967.57

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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.