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Finding the Fourth Proportional to 124,071, 171,171.60 and 73,052.55

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Solution

The fourth proportional to 124,071, 171,171.60 and 73,052.55 is: 100,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,071 : 171,171.60 = 73,052.55 : x
  2. Step 2: Convert to fraction form
    124,071/171,171.60 = 73,052.55/x
  3. Step 3: Cross multiply
    124,071x = 171,171.60 × 73,052.55
  4. Step 4: Simplify right side
    124,071x = 12,504,521,867.58
  5. Step 5: Solve for x
    x = 12,504,521,867.58/124,071
  6. Step 6: Final answer
    x = 100,785.21

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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.