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Finding the Fourth Proportional to 162,409.65, 243,611.79 and 48,557.73

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Solution

The fourth proportional to 162,409.65, 243,611.79 and 48,557.73 is: 72,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,409.65 : 243,611.79 = 48,557.73 : x
  2. Step 2: Convert to fraction form
    162,409.65/243,611.79 = 48,557.73/x
  3. Step 3: Cross multiply
    162,409.65x = 243,611.79 × 48,557.73
  4. Step 4: Simplify right side
    162,409.65x = 11,829,235,523.64
  5. Step 5: Solve for x
    x = 11,829,235,523.64/162,409.65
  6. Step 6: Final answer
    x = 72,835.79

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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.