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Finding the Fourth Proportional to 171,089.66, 256,630.17 and 46,427.42

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Solution

The fourth proportional to 171,089.66, 256,630.17 and 46,427.42 is: 69,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,089.66 : 256,630.17 = 46,427.42 : x
  2. Step 2: Convert to fraction form
    171,089.66/256,630.17 = 46,427.42/x
  3. Step 3: Cross multiply
    171,089.66x = 256,630.17 × 46,427.42
  4. Step 4: Simplify right side
    171,089.66x = 11,914,676,687.26
  5. Step 5: Solve for x
    x = 11,914,676,687.26/171,089.66
  6. Step 6: Final answer
    x = 69,639.96

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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.