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Finding the Fourth Proportional to 123,963.56, 171,071.04 and 67,374.96

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Solution

The fourth proportional to 123,963.56, 171,071.04 and 67,374.96 is: 92,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,963.56 : 171,071.04 = 67,374.96 : x
  2. Step 2: Convert to fraction form
    123,963.56/171,071.04 = 67,374.96/x
  3. Step 3: Cross multiply
    123,963.56x = 171,071.04 × 67,374.96
  4. Step 4: Simplify right side
    123,963.56x = 11,525,904,477.16
  5. Step 5: Solve for x
    x = 11,525,904,477.16/123,963.56
  6. Step 6: Final answer
    x = 92,978.17

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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.