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Finding the Fourth Proportional to 117,589.86, 162,248.67 and 69,859.26

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Solution

The fourth proportional to 117,589.86, 162,248.67 and 69,859.26 is: 96,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,589.86 : 162,248.67 = 69,859.26 : x
  2. Step 2: Convert to fraction form
    117,589.86/162,248.67 = 69,859.26/x
  3. Step 3: Cross multiply
    117,589.86x = 162,248.67 × 69,859.26
  4. Step 4: Simplify right side
    117,589.86x = 11,334,572,022.18
  5. Step 5: Solve for x
    x = 11,334,572,022.18/117,589.86
  6. Step 6: Final answer
    x = 96,390.73

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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.