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Finding the Fourth Proportional to 94,378.32, 130,231.26 and 54,081

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Solution

The fourth proportional to 94,378.32, 130,231.26 and 54,081 is: 74,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,378.32 : 130,231.26 = 54,081 : x
  2. Step 2: Convert to fraction form
    94,378.32/130,231.26 = 54,081/x
  3. Step 3: Cross multiply
    94,378.32x = 130,231.26 × 54,081
  4. Step 4: Simplify right side
    94,378.32x = 7,043,036,772.06
  5. Step 5: Solve for x
    x = 7,043,036,772.06/94,378.32
  6. Step 6: Final answer
    x = 74,625.58

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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.