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Finding the Fourth Proportional to 117,487.56, 162,058.92 and 69,707

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Solution

The fourth proportional to 117,487.56, 162,058.92 and 69,707 is: 96,151.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,487.56 : 162,058.92 = 69,707 : x
  2. Step 2: Convert to fraction form
    117,487.56/162,058.92 = 69,707/x
  3. Step 3: Cross multiply
    117,487.56x = 162,058.92 × 69,707
  4. Step 4: Simplify right side
    117,487.56x = 11,296,641,136.44
  5. Step 5: Solve for x
    x = 11,296,641,136.44/117,487.56
  6. Step 6: Final answer
    x = 96,151.81

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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.