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Finding the Fourth Proportional to 123,212.88, 184,842.08 and 38,994.24

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Solution

The fourth proportional to 123,212.88, 184,842.08 and 38,994.24 is: 58,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,212.88 : 184,842.08 = 38,994.24 : x
  2. Step 2: Convert to fraction form
    123,212.88/184,842.08 = 38,994.24/x
  3. Step 3: Cross multiply
    123,212.88x = 184,842.08 × 38,994.24
  4. Step 4: Simplify right side
    123,212.88x = 7,207,776,429.62
  5. Step 5: Solve for x
    x = 7,207,776,429.62/123,212.88
  6. Step 6: Final answer
    x = 58,498.56

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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.