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Finding the Fourth Proportional to 302,562.80, 453,844.20 and 155,106.80

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Solution

The fourth proportional to 302,562.80, 453,844.20 and 155,106.80 is: 232,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,562.80 : 453,844.20 = 155,106.80 : x
  2. Step 2: Convert to fraction form
    302,562.80/453,844.20 = 155,106.80/x
  3. Step 3: Cross multiply
    302,562.80x = 453,844.20 × 155,106.80
  4. Step 4: Simplify right side
    302,562.80x = 70,394,321,560.56
  5. Step 5: Solve for x
    x = 70,394,321,560.56/302,562.80
  6. Step 6: Final answer
    x = 232,660.20

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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.