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Finding the Fourth Proportional to 136,483.20, 204,724.80 and 101,491.20

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Solution

The fourth proportional to 136,483.20, 204,724.80 and 101,491.20 is: 152,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,483.20 : 204,724.80 = 101,491.20 : x
  2. Step 2: Convert to fraction form
    136,483.20/204,724.80 = 101,491.20/x
  3. Step 3: Cross multiply
    136,483.20x = 204,724.80 × 101,491.20
  4. Step 4: Simplify right side
    136,483.20x = 20,777,765,621.76
  5. Step 5: Solve for x
    x = 20,777,765,621.76/136,483.20
  6. Step 6: Final answer
    x = 152,236.80

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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.