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Finding the Fourth Proportional to 265,884.38, 366,921.59 and 145,028.26

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Solution

The fourth proportional to 265,884.38, 366,921.59 and 145,028.26 is: 200,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,884.38 : 366,921.59 = 145,028.26 : x
  2. Step 2: Convert to fraction form
    265,884.38/366,921.59 = 145,028.26/x
  3. Step 3: Cross multiply
    265,884.38x = 366,921.59 × 145,028.26
  4. Step 4: Simplify right side
    265,884.38x = 53,213,998,111.69
  5. Step 5: Solve for x
    x = 53,213,998,111.69/265,884.38
  6. Step 6: Final answer
    x = 200,139.62

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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.