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Finding the Fourth Proportional to 98,007.39, 135,247.56 and 54,983.27

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Solution

The fourth proportional to 98,007.39, 135,247.56 and 54,983.27 is: 75,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,007.39 : 135,247.56 = 54,983.27 : x
  2. Step 2: Convert to fraction form
    98,007.39/135,247.56 = 54,983.27/x
  3. Step 3: Cross multiply
    98,007.39x = 135,247.56 × 54,983.27
  4. Step 4: Simplify right side
    98,007.39x = 7,436,352,432.08
  5. Step 5: Solve for x
    x = 7,436,352,432.08/98,007.39
  6. Step 6: Final answer
    x = 75,875.43

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1.5x scale

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.