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Finding the Fourth Proportional to 114,168.45, 157,615.80 and 68,857.86

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Solution

The fourth proportional to 114,168.45, 157,615.80 and 68,857.86 is: 95,062.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,168.45 : 157,615.80 = 68,857.86 : x
  2. Step 2: Convert to fraction form
    114,168.45/157,615.80 = 68,857.86/x
  3. Step 3: Cross multiply
    114,168.45x = 157,615.80 × 68,857.86
  4. Step 4: Simplify right side
    114,168.45x = 10,853,086,690.19
  5. Step 5: Solve for x
    x = 10,853,086,690.19/114,168.45
  6. Step 6: Final answer
    x = 95,062.05

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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.