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Finding the Fourth Proportional to 123,390.97, 185,162.61 and 48,497.98

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Solution

The fourth proportional to 123,390.97, 185,162.61 and 48,497.98 is: 72,776.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,390.97 : 185,162.61 = 48,497.98 : x
  2. Step 2: Convert to fraction form
    123,390.97/185,162.61 = 48,497.98/x
  3. Step 3: Cross multiply
    123,390.97x = 185,162.61 × 48,497.98
  4. Step 4: Simplify right side
    123,390.97x = 8,980,012,556.53
  5. Step 5: Solve for x
    x = 8,980,012,556.53/123,390.97
  6. Step 6: Final answer
    x = 72,776.90

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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.