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Finding the Fourth Proportional to 123,963.48, 171,069.84 and 67,374.72

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Solution

The fourth proportional to 123,963.48, 171,069.84 and 67,374.72 is: 92,977.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,963.48 : 171,069.84 = 67,374.72 : x
  2. Step 2: Convert to fraction form
    123,963.48/171,069.84 = 67,374.72/x
  3. Step 3: Cross multiply
    123,963.48x = 171,069.84 × 67,374.72
  4. Step 4: Simplify right side
    123,963.48x = 11,525,782,570.44
  5. Step 5: Solve for x
    x = 11,525,782,570.44/123,963.48
  6. Step 6: Final answer
    x = 92,977.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.