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Finding the Fourth Proportional to 432,685.61, 649,028.85 and 112,837.24

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Solution

The fourth proportional to 432,685.61, 649,028.85 and 112,837.24 is: 169,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,685.61 : 649,028.85 = 112,837.24 : x
  2. Step 2: Convert to fraction form
    432,685.61/649,028.85 = 112,837.24/x
  3. Step 3: Cross multiply
    432,685.61x = 649,028.85 × 112,837.24
  4. Step 4: Simplify right side
    432,685.61x = 73,234,624,114.37
  5. Step 5: Solve for x
    x = 73,234,624,114.37/432,685.61
  6. Step 6: Final answer
    x = 169,255.97

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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.