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Finding the Fourth Proportional to 347,989.74, 522,062.37 and 111,346.62

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Solution

The fourth proportional to 347,989.74, 522,062.37 and 111,346.62 is: 167,044.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,989.74 : 522,062.37 = 111,346.62 : x
  2. Step 2: Convert to fraction form
    347,989.74/522,062.37 = 111,346.62/x
  3. Step 3: Cross multiply
    347,989.74x = 522,062.37 × 111,346.62
  4. Step 4: Simplify right side
    347,989.74x = 58,129,880,328.69
  5. Step 5: Solve for x
    x = 58,129,880,328.69/347,989.74
  6. Step 6: Final answer
    x = 167,044.81

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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.