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Finding the Fourth Proportional to 265,884.63, 366,921.93 and 145,028.51

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Solution

The fourth proportional to 265,884.63, 366,921.93 and 145,028.51 is: 200,139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,884.63 : 366,921.93 = 145,028.51 : x
  2. Step 2: Convert to fraction form
    265,884.63/366,921.93 = 145,028.51/x
  3. Step 3: Cross multiply
    265,884.63x = 366,921.93 × 145,028.51
  4. Step 4: Simplify right side
    265,884.63x = 53,214,140,794.22
  5. Step 5: Solve for x
    x = 53,214,140,794.22/265,884.63
  6. Step 6: Final answer
    x = 200,139.97

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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.