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Finding the Fourth Proportional to 366,917.13, 550,458.32 and 130,259.43

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Solution

The fourth proportional to 366,917.13, 550,458.32 and 130,259.43 is: 195,418.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,917.13 : 550,458.32 = 130,259.43 : x
  2. Step 2: Convert to fraction form
    366,917.13/550,458.32 = 130,259.43/x
  3. Step 3: Cross multiply
    366,917.13x = 550,458.32 × 130,259.43
  4. Step 4: Simplify right side
    366,917.13x = 71,702,386,350.66
  5. Step 5: Solve for x
    x = 71,702,386,350.66/366,917.13
  6. Step 6: Final answer
    x = 195,418.48

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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.