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Finding the Fourth Proportional to 119,675.80, 179,427.30 and 67,101.40

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Solution

The fourth proportional to 119,675.80, 179,427.30 and 67,101.40 is: 100,603.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,675.80 : 179,427.30 = 67,101.40 : x
  2. Step 2: Convert to fraction form
    119,675.80/179,427.30 = 67,101.40/x
  3. Step 3: Cross multiply
    119,675.80x = 179,427.30 × 67,101.40
  4. Step 4: Simplify right side
    119,675.80x = 12,039,823,028.22
  5. Step 5: Solve for x
    x = 12,039,823,028.22/119,675.80
  6. Step 6: Final answer
    x = 100,603.66

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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.