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Finding the Fourth Proportional to 125,221.40, 187,832.10 and 109,669.40

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Solution

The fourth proportional to 125,221.40, 187,832.10 and 109,669.40 is: 164,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,221.40 : 187,832.10 = 109,669.40 : x
  2. Step 2: Convert to fraction form
    125,221.40/187,832.10 = 109,669.40/x
  3. Step 3: Cross multiply
    125,221.40x = 187,832.10 × 109,669.40
  4. Step 4: Simplify right side
    125,221.40x = 20,599,433,707.74
  5. Step 5: Solve for x
    x = 20,599,433,707.74/125,221.40
  6. Step 6: Final answer
    x = 164,504.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.