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Finding the Fourth Proportional to 123,892.68, 170,970.94 and 67,304.46

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Solution

The fourth proportional to 123,892.68, 170,970.94 and 67,304.46 is: 92,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,892.68 : 170,970.94 = 67,304.46 : x
  2. Step 2: Convert to fraction form
    123,892.68/170,970.94 = 67,304.46/x
  3. Step 3: Cross multiply
    123,892.68x = 170,970.94 × 67,304.46
  4. Step 4: Simplify right side
    123,892.68x = 11,507,106,792.39
  5. Step 5: Solve for x
    x = 11,507,106,792.39/123,892.68
  6. Step 6: Final answer
    x = 92,879.63

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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.