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Finding the Fourth Proportional to 114,304.86, 157,758.78 and 68,989.32

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Solution

The fourth proportional to 114,304.86, 157,758.78 and 68,989.32 is: 95,216.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,304.86 : 157,758.78 = 68,989.32 : x
  2. Step 2: Convert to fraction form
    114,304.86/157,758.78 = 68,989.32/x
  3. Step 3: Cross multiply
    114,304.86x = 157,758.78 × 68,989.32
  4. Step 4: Simplify right side
    114,304.86x = 10,883,670,956.23
  5. Step 5: Solve for x
    x = 10,883,670,956.23/114,304.86
  6. Step 6: Final answer
    x = 95,216.17

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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.