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Finding the Fourth Proportional to 262,686.64, 394,081.40 and 94,161.88

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Solution

The fourth proportional to 262,686.64, 394,081.40 and 94,161.88 is: 141,261.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,686.64 : 394,081.40 = 94,161.88 : x
  2. Step 2: Convert to fraction form
    262,686.64/394,081.40 = 94,161.88/x
  3. Step 3: Cross multiply
    262,686.64x = 394,081.40 × 94,161.88
  4. Step 4: Simplify right side
    262,686.64x = 37,107,445,497.03
  5. Step 5: Solve for x
    x = 37,107,445,497.03/262,686.64
  6. Step 6: Final answer
    x = 141,261.26

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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.