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Finding the Fourth Proportional to 126,903.66, 190,227.32 and 79,551.94

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Solution

The fourth proportional to 126,903.66, 190,227.32 and 79,551.94 is: 119,247.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,903.66 : 190,227.32 = 79,551.94 : x
  2. Step 2: Convert to fraction form
    126,903.66/190,227.32 = 79,551.94/x
  3. Step 3: Cross multiply
    126,903.66x = 190,227.32 × 79,551.94
  4. Step 4: Simplify right side
    126,903.66x = 15,132,952,783.66
  5. Step 5: Solve for x
    x = 15,132,952,783.66/126,903.66
  6. Step 6: Final answer
    x = 119,247.57

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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.