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Finding the Fourth Proportional to 161,958.84, 242,439.84 and 105,677.88

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Solution

The fourth proportional to 161,958.84, 242,439.84 and 105,677.88 is: 158,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,958.84 : 242,439.84 = 105,677.88 : x
  2. Step 2: Convert to fraction form
    161,958.84/242,439.84 = 105,677.88/x
  3. Step 3: Cross multiply
    161,958.84x = 242,439.84 × 105,677.88
  4. Step 4: Simplify right side
    161,958.84x = 25,620,528,318.74
  5. Step 5: Solve for x
    x = 25,620,528,318.74/161,958.84
  6. Step 6: Final answer
    x = 158,191.60

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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.