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Finding the Fourth Proportional to 80,341.76, 110,871.60 and 48,518.48

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Solution

The fourth proportional to 80,341.76, 110,871.60 and 48,518.48 is: 66,955.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,341.76 : 110,871.60 = 48,518.48 : x
  2. Step 2: Convert to fraction form
    80,341.76/110,871.60 = 48,518.48/x
  3. Step 3: Cross multiply
    80,341.76x = 110,871.60 × 48,518.48
  4. Step 4: Simplify right side
    80,341.76x = 5,379,321,507.17
  5. Step 5: Solve for x
    x = 5,379,321,507.17/80,341.76
  6. Step 6: Final answer
    x = 66,955.49

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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.