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Finding the Fourth Proportional to 105,372.63, 158,058.77 and 49,193.91

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Solution

The fourth proportional to 105,372.63, 158,058.77 and 49,193.91 is: 73,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,372.63 : 158,058.77 = 49,193.91 : x
  2. Step 2: Convert to fraction form
    105,372.63/158,058.77 = 49,193.91/x
  3. Step 3: Cross multiply
    105,372.63x = 158,058.77 × 49,193.91
  4. Step 4: Simplify right side
    105,372.63x = 7,775,528,660.12
  5. Step 5: Solve for x
    x = 7,775,528,660.12/105,372.63
  6. Step 6: Final answer
    x = 73,790.78

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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.