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Finding the Fourth Proportional to 74,663.64, 111,732.34 and 46,596.89

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Solution

The fourth proportional to 74,663.64, 111,732.34 and 46,596.89 is: 69,731.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,663.64 : 111,732.34 = 46,596.89 : x
  2. Step 2: Convert to fraction form
    74,663.64/111,732.34 = 46,596.89/x
  3. Step 3: Cross multiply
    74,663.64x = 111,732.34 × 46,596.89
  4. Step 4: Simplify right side
    74,663.64x = 5,206,379,556.42
  5. Step 5: Solve for x
    x = 5,206,379,556.42/74,663.64
  6. Step 6: Final answer
    x = 69,731.12

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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.