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Finding the Fourth Proportional to 123,379.77, 185,069.63 and 67,267.07

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Solution

The fourth proportional to 123,379.77, 185,069.63 and 67,267.07 is: 100,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,379.77 : 185,069.63 = 67,267.07 : x
  2. Step 2: Convert to fraction form
    123,379.77/185,069.63 = 67,267.07/x
  3. Step 3: Cross multiply
    123,379.77x = 185,069.63 × 67,267.07
  4. Step 4: Simplify right side
    123,379.77x = 12,449,092,134.67
  5. Step 5: Solve for x
    x = 12,449,092,134.67/123,379.77
  6. Step 6: Final answer
    x = 100,900.59

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1.5x scale

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.