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Finding the Fourth Proportional to 240,858.78, 361,306.88 and 72,365.96

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Solution

The fourth proportional to 240,858.78, 361,306.88 and 72,365.96 is: 108,554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,858.78 : 361,306.88 = 72,365.96 : x
  2. Step 2: Convert to fraction form
    240,858.78/361,306.88 = 72,365.96/x
  3. Step 3: Cross multiply
    240,858.78x = 361,306.88 × 72,365.96
  4. Step 4: Simplify right side
    240,858.78x = 26,146,319,225.80
  5. Step 5: Solve for x
    x = 26,146,319,225.80/240,858.78
  6. Step 6: Final answer
    x = 108,554.56

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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.