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Finding the Fourth Proportional to 94,463.91, 130,138.38 and 65,734.20

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Solution

The fourth proportional to 94,463.91, 130,138.38 and 65,734.20 is: 90,558.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,463.91 : 130,138.38 = 65,734.20 : x
  2. Step 2: Convert to fraction form
    94,463.91/130,138.38 = 65,734.20/x
  3. Step 3: Cross multiply
    94,463.91x = 130,138.38 × 65,734.20
  4. Step 4: Simplify right side
    94,463.91x = 8,554,542,298.60
  5. Step 5: Solve for x
    x = 8,554,542,298.60/94,463.91
  6. Step 6: Final answer
    x = 90,558.84

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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.