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Finding the Fourth Proportional to 123,172.20, 184,412.70 and 119,716.20

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Solution

The fourth proportional to 123,172.20, 184,412.70 and 119,716.20 is: 179,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,172.20 : 184,412.70 = 119,716.20 : x
  2. Step 2: Convert to fraction form
    123,172.20/184,412.70 = 119,716.20/x
  3. Step 3: Cross multiply
    123,172.20x = 184,412.70 × 119,716.20
  4. Step 4: Simplify right side
    123,172.20x = 22,077,187,675.74
  5. Step 5: Solve for x
    x = 22,077,187,675.74/123,172.20
  6. Step 6: Final answer
    x = 179,238.40

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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.