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Finding the Fourth Proportional to 366,987.51, 550,473.96 and 208,877.13

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Solution

The fourth proportional to 366,987.51, 550,473.96 and 208,877.13 is: 313,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,987.51 : 550,473.96 = 208,877.13 : x
  2. Step 2: Convert to fraction form
    366,987.51/550,473.96 = 208,877.13/x
  3. Step 3: Cross multiply
    366,987.51x = 550,473.96 × 208,877.13
  4. Step 4: Simplify right side
    366,987.51x = 114,981,420,904.54
  5. Step 5: Solve for x
    x = 114,981,420,904.54/366,987.51
  6. Step 6: Final answer
    x = 313,311.54

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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.