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Finding the Fourth Proportional to 218,503.97, 327,595.57 and 92,139.11

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Solution

The fourth proportional to 218,503.97, 327,595.57 and 92,139.11 is: 138,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,503.97 : 327,595.57 = 92,139.11 : x
  2. Step 2: Convert to fraction form
    218,503.97/327,595.57 = 92,139.11/x
  3. Step 3: Cross multiply
    218,503.97x = 327,595.57 × 92,139.11
  4. Step 4: Simplify right side
    218,503.97x = 30,184,364,259.74
  5. Step 5: Solve for x
    x = 30,184,364,259.74/218,503.97
  6. Step 6: Final answer
    x = 138,141.03

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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.