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Finding the Fourth Proportional to 94,378.81, 130,245.81 and 54,100.19

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Solution

The fourth proportional to 94,378.81, 130,245.81 and 54,100.19 is: 74,660.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,378.81 : 130,245.81 = 54,100.19 : x
  2. Step 2: Convert to fraction form
    94,378.81/130,245.81 = 54,100.19/x
  3. Step 3: Cross multiply
    94,378.81x = 130,245.81 × 54,100.19
  4. Step 4: Simplify right side
    94,378.81x = 7,046,323,067.70
  5. Step 5: Solve for x
    x = 7,046,323,067.70/94,378.81
  6. Step 6: Final answer
    x = 74,660.01

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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.