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Finding the Fourth Proportional to 220,805.10, 304,609.14 and 130,099.14

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Solution

The fourth proportional to 220,805.10, 304,609.14 and 130,099.14 is: 179,476.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,805.10 : 304,609.14 = 130,099.14 : x
  2. Step 2: Convert to fraction form
    220,805.10/304,609.14 = 130,099.14/x
  3. Step 3: Cross multiply
    220,805.10x = 304,609.14 × 130,099.14
  4. Step 4: Simplify right side
    220,805.10x = 39,629,387,150.14
  5. Step 5: Solve for x
    x = 39,629,387,150.14/220,805.10
  6. Step 6: Final answer
    x = 179,476.77

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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.