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Finding the Fourth Proportional to 66,848.80, 100,273.20 and 27,392.80

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Solution

The fourth proportional to 66,848.80, 100,273.20 and 27,392.80 is: 41,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,848.80 : 100,273.20 = 27,392.80 : x
  2. Step 2: Convert to fraction form
    66,848.80/100,273.20 = 27,392.80/x
  3. Step 3: Cross multiply
    66,848.80x = 100,273.20 × 27,392.80
  4. Step 4: Simplify right side
    66,848.80x = 2,746,763,712.96
  5. Step 5: Solve for x
    x = 2,746,763,712.96/66,848.80
  6. Step 6: Final answer
    x = 41,089.20

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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.