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Finding the Fourth Proportional to 64,846.80, 97,270.20 and 47,132.10

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Solution

The fourth proportional to 64,846.80, 97,270.20 and 47,132.10 is: 70,698.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,846.80 : 97,270.20 = 47,132.10 : x
  2. Step 2: Convert to fraction form
    64,846.80/97,270.20 = 47,132.10/x
  3. Step 3: Cross multiply
    64,846.80x = 97,270.20 × 47,132.10
  4. Step 4: Simplify right side
    64,846.80x = 4,584,548,793.42
  5. Step 5: Solve for x
    x = 4,584,548,793.42/64,846.80
  6. Step 6: Final answer
    x = 70,698.15

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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.