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Finding the Fourth Proportional to 77,476.68, 106,913.34 and 43,481.92

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Solution

The fourth proportional to 77,476.68, 106,913.34 and 43,481.92 is: 60,002.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,476.68 : 106,913.34 = 43,481.92 : x
  2. Step 2: Convert to fraction form
    77,476.68/106,913.34 = 43,481.92/x
  3. Step 3: Cross multiply
    77,476.68x = 106,913.34 × 43,481.92
  4. Step 4: Simplify right side
    77,476.68x = 4,648,797,296.81
  5. Step 5: Solve for x
    x = 4,648,797,296.81/77,476.68
  6. Step 6: Final answer
    x = 60,002.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.