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Finding the Fourth Proportional to 100,968.84, 151,359.82 and 38,589.32

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Solution

The fourth proportional to 100,968.84, 151,359.82 and 38,589.32 is: 57,848.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,968.84 : 151,359.82 = 38,589.32 : x
  2. Step 2: Convert to fraction form
    100,968.84/151,359.82 = 38,589.32/x
  3. Step 3: Cross multiply
    100,968.84x = 151,359.82 × 38,589.32
  4. Step 4: Simplify right side
    100,968.84x = 5,840,872,529.12
  5. Step 5: Solve for x
    x = 5,840,872,529.12/100,968.84
  6. Step 6: Final answer
    x = 57,848.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.