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Finding the Fourth Proportional to 302,290.20, 453,435.30 and 91,927.80

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Solution

The fourth proportional to 302,290.20, 453,435.30 and 91,927.80 is: 137,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,290.20 : 453,435.30 = 91,927.80 : x
  2. Step 2: Convert to fraction form
    302,290.20/453,435.30 = 91,927.80/x
  3. Step 3: Cross multiply
    302,290.20x = 453,435.30 × 91,927.80
  4. Step 4: Simplify right side
    302,290.20x = 41,683,309,571.34
  5. Step 5: Solve for x
    x = 41,683,309,571.34/302,290.20
  6. Step 6: Final answer
    x = 137,891.70

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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.