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Finding the Fourth Proportional to 347,878.44, 521,892.03 and 107,987.07

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Solution

The fourth proportional to 347,878.44, 521,892.03 and 107,987.07 is: 162,003.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,878.44 : 521,892.03 = 107,987.07 : x
  2. Step 2: Convert to fraction form
    347,878.44/521,892.03 = 107,987.07/x
  3. Step 3: Cross multiply
    347,878.44x = 521,892.03 × 107,987.07
  4. Step 4: Simplify right side
    347,878.44x = 56,357,591,176.05
  5. Step 5: Solve for x
    x = 56,357,591,176.05/347,878.44
  6. Step 6: Final answer
    x = 162,003.69

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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.