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Finding the Fourth Proportional to 169,361.80, 233,719.61 and 92,881.43

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Solution

The fourth proportional to 169,361.80, 233,719.61 and 92,881.43 is: 128,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,361.80 : 233,719.61 = 92,881.43 : x
  2. Step 2: Convert to fraction form
    169,361.80/233,719.61 = 92,881.43/x
  3. Step 3: Cross multiply
    169,361.80x = 233,719.61 × 92,881.43
  4. Step 4: Simplify right side
    169,361.80x = 21,708,212,412.34
  5. Step 5: Solve for x
    x = 21,708,212,412.34/169,361.80
  6. Step 6: Final answer
    x = 128,176.56

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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.