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Finding the Fourth Proportional to 77,551.92, 107,021.70 and 43,560.48

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Solution

The fourth proportional to 77,551.92, 107,021.70 and 43,560.48 is: 60,113.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,551.92 : 107,021.70 = 43,560.48 : x
  2. Step 2: Convert to fraction form
    77,551.92/107,021.70 = 43,560.48/x
  3. Step 3: Cross multiply
    77,551.92x = 107,021.70 × 43,560.48
  4. Step 4: Simplify right side
    77,551.92x = 4,661,916,622.42
  5. Step 5: Solve for x
    x = 4,661,916,622.42/77,551.92
  6. Step 6: Final answer
    x = 60,113.49

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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.