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Finding the Fourth Proportional to 124,579.01, 171,912.96 and 70,127.97

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Solution

The fourth proportional to 124,579.01, 171,912.96 and 70,127.97 is: 96,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,579.01 : 171,912.96 = 70,127.97 : x
  2. Step 2: Convert to fraction form
    124,579.01/171,912.96 = 70,127.97/x
  3. Step 3: Cross multiply
    124,579.01x = 171,912.96 × 70,127.97
  4. Step 4: Simplify right side
    124,579.01x = 12,055,906,901.49
  5. Step 5: Solve for x
    x = 12,055,906,901.49/124,579.01
  6. Step 6: Final answer
    x = 96,773.18

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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.