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Finding the Fourth Proportional to 265,024.27, 397,530.25 and 85,109.33

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Solution

The fourth proportional to 265,024.27, 397,530.25 and 85,109.33 is: 127,662.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,024.27 : 397,530.25 = 85,109.33 : x
  2. Step 2: Convert to fraction form
    265,024.27/397,530.25 = 85,109.33/x
  3. Step 3: Cross multiply
    265,024.27x = 397,530.25 × 85,109.33
  4. Step 4: Simplify right side
    265,024.27x = 33,833,534,013.28
  5. Step 5: Solve for x
    x = 33,833,534,013.28/265,024.27
  6. Step 6: Final answer
    x = 127,662.02

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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.