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Finding the Fourth Proportional to 171,057.61, 256,586.55 and 46,398.61

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Solution

The fourth proportional to 171,057.61, 256,586.55 and 46,398.61 is: 69,597.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,057.61 : 256,586.55 = 46,398.61 : x
  2. Step 2: Convert to fraction form
    171,057.61/256,586.55 = 46,398.61/x
  3. Step 3: Cross multiply
    171,057.61x = 256,586.55 × 46,398.61
  4. Step 4: Simplify right side
    171,057.61x = 11,905,259,264.70
  5. Step 5: Solve for x
    x = 11,905,259,264.70/171,057.61
  6. Step 6: Final answer
    x = 69,597.95

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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.