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Finding the Fourth Proportional to 80,636.78, 111,270.30 and 44,821.02

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Solution

The fourth proportional to 80,636.78, 111,270.30 and 44,821.02 is: 61,848.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,636.78 : 111,270.30 = 44,821.02 : x
  2. Step 2: Convert to fraction form
    80,636.78/111,270.30 = 44,821.02/x
  3. Step 3: Cross multiply
    80,636.78x = 111,270.30 × 44,821.02
  4. Step 4: Simplify right side
    80,636.78x = 4,987,248,341.71
  5. Step 5: Solve for x
    x = 4,987,248,341.71/80,636.78
  6. Step 6: Final answer
    x = 61,848.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.