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Finding the Fourth Proportional to 265,326.83, 397,993.31 and 113,503.26

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Solution

The fourth proportional to 265,326.83, 397,993.31 and 113,503.26 is: 170,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,326.83 : 397,993.31 = 113,503.26 : x
  2. Step 2: Convert to fraction form
    265,326.83/397,993.31 = 113,503.26/x
  3. Step 3: Cross multiply
    265,326.83x = 397,993.31 × 113,503.26
  4. Step 4: Simplify right side
    265,326.83x = 45,173,538,143.19
  5. Step 5: Solve for x
    x = 45,173,538,143.19/265,326.83
  6. Step 6: Final answer
    x = 170,256.20

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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.