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Finding the Fourth Proportional to 114,989.26, 158,642.61 and 114,811.92

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Solution

The fourth proportional to 114,989.26, 158,642.61 and 114,811.92 is: 158,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,989.26 : 158,642.61 = 114,811.92 : x
  2. Step 2: Convert to fraction form
    114,989.26/158,642.61 = 114,811.92/x
  3. Step 3: Cross multiply
    114,989.26x = 158,642.61 × 114,811.92
  4. Step 4: Simplify right side
    114,989.26x = 18,214,062,801.55
  5. Step 5: Solve for x
    x = 18,214,062,801.55/114,989.26
  6. Step 6: Final answer
    x = 158,397.95

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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.