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Finding the Fourth Proportional to 64,989.40, 97,599.30 and 50,234.20

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Solution

The fourth proportional to 64,989.40, 97,599.30 and 50,234.20 is: 75,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,989.40 : 97,599.30 = 50,234.20 : x
  2. Step 2: Convert to fraction form
    64,989.40/97,599.30 = 50,234.20/x
  3. Step 3: Cross multiply
    64,989.40x = 97,599.30 × 50,234.20
  4. Step 4: Simplify right side
    64,989.40x = 4,902,822,756.06
  5. Step 5: Solve for x
    x = 4,902,822,756.06/64,989.40
  6. Step 6: Final answer
    x = 75,440.34

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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.