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Finding the Fourth Proportional to 147,372.48, 203,374.14 and 80,304.48

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Solution

The fourth proportional to 147,372.48, 203,374.14 and 80,304.48 is: 110,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,372.48 : 203,374.14 = 80,304.48 : x
  2. Step 2: Convert to fraction form
    147,372.48/203,374.14 = 80,304.48/x
  3. Step 3: Cross multiply
    147,372.48x = 203,374.14 × 80,304.48
  4. Step 4: Simplify right side
    147,372.48x = 16,331,854,558.15
  5. Step 5: Solve for x
    x = 16,331,854,558.15/147,372.48
  6. Step 6: Final answer
    x = 110,820.25

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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.