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Finding the Fourth Proportional to 57,664.80, 86,497.20 and 48,333.60

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Solution

The fourth proportional to 57,664.80, 86,497.20 and 48,333.60 is: 72,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,664.80 : 86,497.20 = 48,333.60 : x
  2. Step 2: Convert to fraction form
    57,664.80/86,497.20 = 48,333.60/x
  3. Step 3: Cross multiply
    57,664.80x = 86,497.20 × 48,333.60
  4. Step 4: Simplify right side
    57,664.80x = 4,180,721,065.92
  5. Step 5: Solve for x
    x = 4,180,721,065.92/57,664.80
  6. Step 6: Final answer
    x = 72,500.40

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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.