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Finding the Fourth Proportional to 347,015.52, 520,516.08 and 110,358.72

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Solution

The fourth proportional to 347,015.52, 520,516.08 and 110,358.72 is: 165,535.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,015.52 : 520,516.08 = 110,358.72 : x
  2. Step 2: Convert to fraction form
    347,015.52/520,516.08 = 110,358.72/x
  3. Step 3: Cross multiply
    347,015.52x = 520,516.08 × 110,358.72
  4. Step 4: Simplify right side
    347,015.52x = 57,443,488,328.22
  5. Step 5: Solve for x
    x = 57,443,488,328.22/347,015.52
  6. Step 6: Final answer
    x = 165,535.79

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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.