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Finding the Fourth Proportional to 247,962.61, 371,717.12 and 107,670.61

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Solution

The fourth proportional to 247,962.61, 371,717.12 and 107,670.61 is: 161,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,962.61 : 371,717.12 = 107,670.61 : x
  2. Step 2: Convert to fraction form
    247,962.61/371,717.12 = 107,670.61/x
  3. Step 3: Cross multiply
    247,962.61x = 371,717.12 × 107,670.61
  4. Step 4: Simplify right side
    247,962.61x = 40,023,008,519.49
  5. Step 5: Solve for x
    x = 40,023,008,519.49/247,962.61
  6. Step 6: Final answer
    x = 161,407.43

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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.