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Finding the Fourth Proportional to 171,086.61, 256,630.05 and 46,427.61

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Solution

The fourth proportional to 171,086.61, 256,630.05 and 46,427.61 is: 69,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,086.61 : 256,630.05 = 46,427.61 : x
  2. Step 2: Convert to fraction form
    171,086.61/256,630.05 = 46,427.61/x
  3. Step 3: Cross multiply
    171,086.61x = 256,630.05 × 46,427.61
  4. Step 4: Simplify right side
    171,086.61x = 11,914,719,875.68
  5. Step 5: Solve for x
    x = 11,914,719,875.68/171,086.61
  6. Step 6: Final answer
    x = 69,641.45

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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.