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Finding the Fourth Proportional to 70,669.19, 106,007.83 and 20,064.27

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Solution

The fourth proportional to 70,669.19, 106,007.83 and 20,064.27 is: 30,097.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,669.19 : 106,007.83 = 20,064.27 : x
  2. Step 2: Convert to fraction form
    70,669.19/106,007.83 = 20,064.27/x
  3. Step 3: Cross multiply
    70,669.19x = 106,007.83 × 20,064.27
  4. Step 4: Simplify right side
    70,669.19x = 2,126,969,232.59
  5. Step 5: Solve for x
    x = 2,126,969,232.59/70,669.19
  6. Step 6: Final answer
    x = 30,097.55

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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.