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Finding the Fourth Proportional to 71,699.38, 107,324.43 and 46,365.28

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Solution

The fourth proportional to 71,699.38, 107,324.43 and 46,365.28 is: 69,402.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,699.38 : 107,324.43 = 46,365.28 : x
  2. Step 2: Convert to fraction form
    71,699.38/107,324.43 = 46,365.28/x
  3. Step 3: Cross multiply
    71,699.38x = 107,324.43 × 46,365.28
  4. Step 4: Simplify right side
    71,699.38x = 4,976,127,247.79
  5. Step 5: Solve for x
    x = 4,976,127,247.79/71,699.38
  6. Step 6: Final answer
    x = 69,402.65

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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.