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Finding the Fourth Proportional to 51,340.80, 76,924.80 and 48,230.40

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Solution

The fourth proportional to 51,340.80, 76,924.80 and 48,230.40 is: 72,264.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,340.80 : 76,924.80 = 48,230.40 : x
  2. Step 2: Convert to fraction form
    51,340.80/76,924.80 = 48,230.40/x
  3. Step 3: Cross multiply
    51,340.80x = 76,924.80 × 48,230.40
  4. Step 4: Simplify right side
    51,340.80x = 3,710,113,873.92
  5. Step 5: Solve for x
    x = 3,710,113,873.92/51,340.80
  6. Step 6: Final answer
    x = 72,264.43

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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.