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Finding the Fourth Proportional to 173,311.20, 259,966.80 and 48,652.20

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Solution

The fourth proportional to 173,311.20, 259,966.80 and 48,652.20 is: 72,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,311.20 : 259,966.80 = 48,652.20 : x
  2. Step 2: Convert to fraction form
    173,311.20/259,966.80 = 48,652.20/x
  3. Step 3: Cross multiply
    173,311.20x = 259,966.80 × 48,652.20
  4. Step 4: Simplify right side
    173,311.20x = 12,647,956,746.96
  5. Step 5: Solve for x
    x = 12,647,956,746.96/173,311.20
  6. Step 6: Final answer
    x = 72,978.30

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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.