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Finding the Fourth Proportional to 344,021.76, 474,748.16 and 193,118.72

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Solution

The fourth proportional to 344,021.76, 474,748.16 and 193,118.72 is: 266,502.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,021.76 : 474,748.16 = 193,118.72 : x
  2. Step 2: Convert to fraction form
    344,021.76/474,748.16 = 193,118.72/x
  3. Step 3: Cross multiply
    344,021.76x = 474,748.16 × 193,118.72
  4. Step 4: Simplify right side
    344,021.76x = 91,682,756,981.56
  5. Step 5: Solve for x
    x = 91,682,756,981.56/344,021.76
  6. Step 6: Final answer
    x = 266,502.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.