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Finding the Fourth Proportional to 171,480.80, 236,585.94 and 99,845.48

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Solution

The fourth proportional to 171,480.80, 236,585.94 and 99,845.48 is: 137,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,480.80 : 236,585.94 = 99,845.48 : x
  2. Step 2: Convert to fraction form
    171,480.80/236,585.94 = 99,845.48/x
  3. Step 3: Cross multiply
    171,480.80x = 236,585.94 × 99,845.48
  4. Step 4: Simplify right side
    171,480.80x = 23,622,036,740.55
  5. Step 5: Solve for x
    x = 23,622,036,740.55/171,480.80
  6. Step 6: Final answer
    x = 137,753.25

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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.