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Finding the Fourth Proportional to 124,369.96, 186,520.74 and 34,391.20

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Solution

The fourth proportional to 124,369.96, 186,520.74 and 34,391.20 is: 51,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,369.96 : 186,520.74 = 34,391.20 : x
  2. Step 2: Convert to fraction form
    124,369.96/186,520.74 = 34,391.20/x
  3. Step 3: Cross multiply
    124,369.96x = 186,520.74 × 34,391.20
  4. Step 4: Simplify right side
    124,369.96x = 6,414,672,073.49
  5. Step 5: Solve for x
    x = 6,414,672,073.49/124,369.96
  6. Step 6: Final answer
    x = 51,577.34

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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.