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Finding the Fourth Proportional to 347,889.30, 521,804.76 and 111,168.42

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Solution

The fourth proportional to 347,889.30, 521,804.76 and 111,168.42 is: 166,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,889.30 : 521,804.76 = 111,168.42 : x
  2. Step 2: Convert to fraction form
    347,889.30/521,804.76 = 111,168.42/x
  3. Step 3: Cross multiply
    347,889.30x = 521,804.76 × 111,168.42
  4. Step 4: Simplify right side
    347,889.30x = 58,008,210,717.68
  5. Step 5: Solve for x
    x = 58,008,210,717.68/347,889.30
  6. Step 6: Final answer
    x = 166,743.30

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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.