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Finding the Fourth Proportional to 77,846.58, 107,464.05 and 50,990.22

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Solution

The fourth proportional to 77,846.58, 107,464.05 and 50,990.22 is: 70,389.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,846.58 : 107,464.05 = 50,990.22 : x
  2. Step 2: Convert to fraction form
    77,846.58/107,464.05 = 50,990.22/x
  3. Step 3: Cross multiply
    77,846.58x = 107,464.05 × 50,990.22
  4. Step 4: Simplify right side
    77,846.58x = 5,479,615,551.59
  5. Step 5: Solve for x
    x = 5,479,615,551.59/77,846.58
  6. Step 6: Final answer
    x = 70,389.93

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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.