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Finding the Fourth Proportional to 146,710.20, 220,065.30 and 136,795.80

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Solution

The fourth proportional to 146,710.20, 220,065.30 and 136,795.80 is: 205,193.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,710.20 : 220,065.30 = 136,795.80 : x
  2. Step 2: Convert to fraction form
    146,710.20/220,065.30 = 136,795.80/x
  3. Step 3: Cross multiply
    146,710.20x = 220,065.30 × 136,795.80
  4. Step 4: Simplify right side
    146,710.20x = 30,104,008,765.74
  5. Step 5: Solve for x
    x = 30,104,008,765.74/146,710.20
  6. Step 6: Final answer
    x = 205,193.70

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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.