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Finding the Fourth Proportional to 161,706.20, 242,559.30 and 154,880.60

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Solution

The fourth proportional to 161,706.20, 242,559.30 and 154,880.60 is: 232,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,706.20 : 242,559.30 = 154,880.60 : x
  2. Step 2: Convert to fraction form
    161,706.20/242,559.30 = 154,880.60/x
  3. Step 3: Cross multiply
    161,706.20x = 242,559.30 × 154,880.60
  4. Step 4: Simplify right side
    161,706.20x = 37,567,729,919.58
  5. Step 5: Solve for x
    x = 37,567,729,919.58/161,706.20
  6. Step 6: Final answer
    x = 232,320.90

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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.