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Finding the Fourth Proportional to 48,273.60, 72,410.40 and 47,836.20

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Solution

The fourth proportional to 48,273.60, 72,410.40 and 47,836.20 is: 71,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,273.60 : 72,410.40 = 47,836.20 : x
  2. Step 2: Convert to fraction form
    48,273.60/72,410.40 = 47,836.20/x
  3. Step 3: Cross multiply
    48,273.60x = 72,410.40 × 47,836.20
  4. Step 4: Simplify right side
    48,273.60x = 3,463,838,376.48
  5. Step 5: Solve for x
    x = 3,463,838,376.48/48,273.60
  6. Step 6: Final answer
    x = 71,754.30

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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.