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Finding the Fourth Proportional to 391,924.35, 587,823.59 and 107,548.48

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Solution

The fourth proportional to 391,924.35, 587,823.59 and 107,548.48 is: 161,305.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,924.35 : 587,823.59 = 107,548.48 : x
  2. Step 2: Convert to fraction form
    391,924.35/587,823.59 = 107,548.48/x
  3. Step 3: Cross multiply
    391,924.35x = 587,823.59 × 107,548.48
  4. Step 4: Simplify right side
    391,924.35x = 63,219,536,420.79
  5. Step 5: Solve for x
    x = 63,219,536,420.79/391,924.35
  6. Step 6: Final answer
    x = 161,305.46

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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.