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Finding the Fourth Proportional to 361,504.60, 542,159.70 and 108,784.60

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Solution

The fourth proportional to 361,504.60, 542,159.70 and 108,784.60 is: 163,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,504.60 : 542,159.70 = 108,784.60 : x
  2. Step 2: Convert to fraction form
    361,504.60/542,159.70 = 108,784.60/x
  3. Step 3: Cross multiply
    361,504.60x = 542,159.70 × 108,784.60
  4. Step 4: Simplify right side
    361,504.60x = 58,978,626,100.62
  5. Step 5: Solve for x
    x = 58,978,626,100.62/361,504.60
  6. Step 6: Final answer
    x = 163,147.65

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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.