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Finding the Fourth Proportional to 107,628.48, 161,479.02 and 47,648.67

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Solution

The fourth proportional to 107,628.48, 161,479.02 and 47,648.67 is: 71,489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,628.48 : 161,479.02 = 47,648.67 : x
  2. Step 2: Convert to fraction form
    107,628.48/161,479.02 = 47,648.67/x
  3. Step 3: Cross multiply
    107,628.48x = 161,479.02 × 47,648.67
  4. Step 4: Simplify right side
    107,628.48x = 7,694,260,295.18
  5. Step 5: Solve for x
    x = 7,694,260,295.18/107,628.48
  6. Step 6: Final answer
    x = 71,489.08

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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.