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Finding the Fourth Proportional to 171,329.88, 256,963.86 and 46,641.72

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Solution

The fourth proportional to 171,329.88, 256,963.86 and 46,641.72 is: 69,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,329.88 : 256,963.86 = 46,641.72 : x
  2. Step 2: Convert to fraction form
    171,329.88/256,963.86 = 46,641.72/x
  3. Step 3: Cross multiply
    171,329.88x = 256,963.86 × 46,641.72
  4. Step 4: Simplify right side
    171,329.88x = 11,985,236,408.24
  5. Step 5: Solve for x
    x = 11,985,236,408.24/171,329.88
  6. Step 6: Final answer
    x = 69,954.15

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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.