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Finding the Fourth Proportional to 70,732.47, 106,032.79 and 48,556.29

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Solution

The fourth proportional to 70,732.47, 106,032.79 and 48,556.29 is: 72,789.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,732.47 : 106,032.79 = 48,556.29 : x
  2. Step 2: Convert to fraction form
    70,732.47/106,032.79 = 48,556.29/x
  3. Step 3: Cross multiply
    70,732.47x = 106,032.79 × 48,556.29
  4. Step 4: Simplify right side
    70,732.47x = 5,148,558,900.75
  5. Step 5: Solve for x
    x = 5,148,558,900.75/70,732.47
  6. Step 6: Final answer
    x = 72,789.19

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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.