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Finding the Fourth Proportional to 161,794.40, 242,691.60 and 147,797.60

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Solution

The fourth proportional to 161,794.40, 242,691.60 and 147,797.60 is: 221,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,794.40 : 242,691.60 = 147,797.60 : x
  2. Step 2: Convert to fraction form
    161,794.40/242,691.60 = 147,797.60/x
  3. Step 3: Cross multiply
    161,794.40x = 242,691.60 × 147,797.60
  4. Step 4: Simplify right side
    161,794.40x = 35,869,236,020.16
  5. Step 5: Solve for x
    x = 35,869,236,020.16/161,794.40
  6. Step 6: Final answer
    x = 221,696.40

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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.