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Finding the Fourth Proportional to 123,963.68, 171,062.88 and 67,374.64

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Solution

The fourth proportional to 123,963.68, 171,062.88 and 67,374.64 is: 92,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,963.68 : 171,062.88 = 67,374.64 : x
  2. Step 2: Convert to fraction form
    123,963.68/171,062.88 = 67,374.64/x
  3. Step 3: Cross multiply
    123,963.68x = 171,062.88 × 67,374.64
  4. Step 4: Simplify right side
    123,963.68x = 11,525,299,957.36
  5. Step 5: Solve for x
    x = 11,525,299,957.36/123,963.68
  6. Step 6: Final answer
    x = 92,973.20

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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.