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Finding the Fourth Proportional to 355,089.60, 531,759.60 and 236,116.80

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Solution

The fourth proportional to 355,089.60, 531,759.60 and 236,116.80 is: 353,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,089.60 : 531,759.60 = 236,116.80 : x
  2. Step 2: Convert to fraction form
    355,089.60/531,759.60 = 236,116.80/x
  3. Step 3: Cross multiply
    355,089.60x = 531,759.60 × 236,116.80
  4. Step 4: Simplify right side
    355,089.60x = 125,557,375,121.28
  5. Step 5: Solve for x
    x = 125,557,375,121.28/355,089.60
  6. Step 6: Final answer
    x = 353,593.50

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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.