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Finding the Fourth Proportional to 117,422.37, 162,058.14 and 65,759.15

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Solution

The fourth proportional to 117,422.37, 162,058.14 and 65,759.15 is: 90,756.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,422.37 : 162,058.14 = 65,759.15 : x
  2. Step 2: Convert to fraction form
    117,422.37/162,058.14 = 65,759.15/x
  3. Step 3: Cross multiply
    117,422.37x = 162,058.14 × 65,759.15
  4. Step 4: Simplify right side
    117,422.37x = 10,656,805,942.13
  5. Step 5: Solve for x
    x = 10,656,805,942.13/117,422.37
  6. Step 6: Final answer
    x = 90,756.18

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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.