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Finding the Fourth Proportional to 143,251.80, 214,878.30 and 48,482.73

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Solution

The fourth proportional to 143,251.80, 214,878.30 and 48,482.73 is: 72,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,251.80 : 214,878.30 = 48,482.73 : x
  2. Step 2: Convert to fraction form
    143,251.80/214,878.30 = 48,482.73/x
  3. Step 3: Cross multiply
    143,251.80x = 214,878.30 × 48,482.73
  4. Step 4: Simplify right side
    143,251.80x = 10,417,886,601.76
  5. Step 5: Solve for x
    x = 10,417,886,601.76/143,251.80
  6. Step 6: Final answer
    x = 72,724.30

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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.