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Finding the Fourth Proportional to 65,992.20, 98,793.90 and 62,147.40

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Solution

The fourth proportional to 65,992.20, 98,793.90 and 62,147.40 is: 93,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,992.20 : 98,793.90 = 62,147.40 : x
  2. Step 2: Convert to fraction form
    65,992.20/98,793.90 = 62,147.40/x
  3. Step 3: Cross multiply
    65,992.20x = 98,793.90 × 62,147.40
  4. Step 4: Simplify right side
    65,992.20x = 6,139,784,020.86
  5. Step 5: Solve for x
    x = 6,139,784,020.86/65,992.20
  6. Step 6: Final answer
    x = 93,038.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.