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Finding the Fourth Proportional to 98,164.36, 135,463.84 and 54,556.76

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Solution

The fourth proportional to 98,164.36, 135,463.84 and 54,556.76 is: 75,286.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,164.36 : 135,463.84 = 54,556.76 : x
  2. Step 2: Convert to fraction form
    98,164.36/135,463.84 = 54,556.76/x
  3. Step 3: Cross multiply
    98,164.36x = 135,463.84 × 54,556.76
  4. Step 4: Simplify right side
    98,164.36x = 7,390,468,207.56
  5. Step 5: Solve for x
    x = 7,390,468,207.56/98,164.36
  6. Step 6: Final answer
    x = 75,286.67

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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.