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Finding the Fourth Proportional to 220,860.82, 304,710.20 and 144,424.62

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Solution

The fourth proportional to 220,860.82, 304,710.20 and 144,424.62 is: 199,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,860.82 : 304,710.20 = 144,424.62 : x
  2. Step 2: Convert to fraction form
    220,860.82/304,710.20 = 144,424.62/x
  3. Step 3: Cross multiply
    220,860.82x = 304,710.20 × 144,424.62
  4. Step 4: Simplify right side
    220,860.82x = 44,007,654,845.12
  5. Step 5: Solve for x
    x = 44,007,654,845.12/220,860.82
  6. Step 6: Final answer
    x = 199,255.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.