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Finding the Fourth Proportional to 124,318.31, 171,579.83 and 73,343.49

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Solution

The fourth proportional to 124,318.31, 171,579.83 and 73,343.49 is: 101,226.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,318.31 : 171,579.83 = 73,343.49 : x
  2. Step 2: Convert to fraction form
    124,318.31/171,579.83 = 73,343.49/x
  3. Step 3: Cross multiply
    124,318.31x = 171,579.83 × 73,343.49
  4. Step 4: Simplify right side
    124,318.31x = 12,584,264,378.42
  5. Step 5: Solve for x
    x = 12,584,264,378.42/124,318.31
  6. Step 6: Final answer
    x = 101,226.16

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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.