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Finding the Fourth Proportional to 432,812.30, 649,255.35 and 113,006.60

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Solution

The fourth proportional to 432,812.30, 649,255.35 and 113,006.60 is: 169,519.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,812.30 : 649,255.35 = 113,006.60 : x
  2. Step 2: Convert to fraction form
    432,812.30/649,255.35 = 113,006.60/x
  3. Step 3: Cross multiply
    432,812.30x = 649,255.35 × 113,006.60
  4. Step 4: Simplify right side
    432,812.30x = 73,370,139,635.31
  5. Step 5: Solve for x
    x = 73,370,139,635.31/432,812.30
  6. Step 6: Final answer
    x = 169,519.53

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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.