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Finding the Fourth Proportional to 77,441.01, 106,869.56 and 43,456.79

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Solution

The fourth proportional to 77,441.01, 106,869.56 and 43,456.79 is: 59,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,441.01 : 106,869.56 = 43,456.79 : x
  2. Step 2: Convert to fraction form
    77,441.01/106,869.56 = 43,456.79/x
  3. Step 3: Cross multiply
    77,441.01x = 106,869.56 × 43,456.79
  4. Step 4: Simplify right side
    77,441.01x = 4,644,207,274.68
  5. Step 5: Solve for x
    x = 4,644,207,274.68/77,441.01
  6. Step 6: Final answer
    x = 59,970.90

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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.