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Finding the Fourth Proportional to 124,369.92, 186,408.81 and 57,669.66

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Solution

The fourth proportional to 124,369.92, 186,408.81 and 57,669.66 is: 86,436.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,369.92 : 186,408.81 = 57,669.66 : x
  2. Step 2: Convert to fraction form
    124,369.92/186,408.81 = 57,669.66/x
  3. Step 3: Cross multiply
    124,369.92x = 186,408.81 × 57,669.66
  4. Step 4: Simplify right side
    124,369.92x = 10,750,132,693.70
  5. Step 5: Solve for x
    x = 10,750,132,693.70/124,369.92
  6. Step 6: Final answer
    x = 86,436.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.