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Finding the Fourth Proportional to 111,180.04, 153,455.46 and 68,713

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Solution

The fourth proportional to 111,180.04, 153,455.46 and 68,713 is: 94,840.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,180.04 : 153,455.46 = 68,713 : x
  2. Step 2: Convert to fraction form
    111,180.04/153,455.46 = 68,713/x
  3. Step 3: Cross multiply
    111,180.04x = 153,455.46 × 68,713
  4. Step 4: Simplify right side
    111,180.04x = 10,544,385,022.98
  5. Step 5: Solve for x
    x = 10,544,385,022.98/111,180.04
  6. Step 6: Final answer
    x = 94,840.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.