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Finding the Fourth Proportional to 124,398.37, 171,661.17 and 69,958.68

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Solution

The fourth proportional to 124,398.37, 171,661.17 and 69,958.68 is: 96,538.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,398.37 : 171,661.17 = 69,958.68 : x
  2. Step 2: Convert to fraction form
    124,398.37/171,661.17 = 69,958.68/x
  3. Step 3: Cross multiply
    124,398.37x = 171,661.17 × 69,958.68
  4. Step 4: Simplify right side
    124,398.37x = 12,009,188,002.15
  5. Step 5: Solve for x
    x = 12,009,188,002.15/124,398.37
  6. Step 6: Final answer
    x = 96,538.15

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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.