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Finding the Fourth Proportional to 205,393.20, 308,089.80 and 94,801.20

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Solution

The fourth proportional to 205,393.20, 308,089.80 and 94,801.20 is: 142,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,393.20 : 308,089.80 = 94,801.20 : x
  2. Step 2: Convert to fraction form
    205,393.20/308,089.80 = 94,801.20/x
  3. Step 3: Cross multiply
    205,393.20x = 308,089.80 × 94,801.20
  4. Step 4: Simplify right side
    205,393.20x = 29,207,282,747.76
  5. Step 5: Solve for x
    x = 29,207,282,747.76/205,393.20
  6. Step 6: Final answer
    x = 142,201.80

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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.