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Finding the Fourth Proportional to 98,793.43, 136,334.96 and 54,081.43

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Solution

The fourth proportional to 98,793.43, 136,334.96 and 54,081.43 is: 74,632.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,793.43 : 136,334.96 = 54,081.43 : x
  2. Step 2: Convert to fraction form
    98,793.43/136,334.96 = 54,081.43/x
  3. Step 3: Cross multiply
    98,793.43x = 136,334.96 × 54,081.43
  4. Step 4: Simplify right side
    98,793.43x = 7,373,189,595.79
  5. Step 5: Solve for x
    x = 7,373,189,595.79/98,793.43
  6. Step 6: Final answer
    x = 74,632.39

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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.