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Finding the Fourth Proportional to 53,464.80, 80,197.20 and 52,687.20

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Solution

The fourth proportional to 53,464.80, 80,197.20 and 52,687.20 is: 79,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,464.80 : 80,197.20 = 52,687.20 : x
  2. Step 2: Convert to fraction form
    53,464.80/80,197.20 = 52,687.20/x
  3. Step 3: Cross multiply
    53,464.80x = 80,197.20 × 52,687.20
  4. Step 4: Simplify right side
    53,464.80x = 4,225,365,915.84
  5. Step 5: Solve for x
    x = 4,225,365,915.84/53,464.80
  6. Step 6: Final answer
    x = 79,030.80

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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.