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Finding the Fourth Proportional to 161,712.30, 242,568.45 and 151,214.70

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Solution

The fourth proportional to 161,712.30, 242,568.45 and 151,214.70 is: 226,822.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,712.30 : 242,568.45 = 151,214.70 : x
  2. Step 2: Convert to fraction form
    161,712.30/242,568.45 = 151,214.70/x
  3. Step 3: Cross multiply
    161,712.30x = 242,568.45 × 151,214.70
  4. Step 4: Simplify right side
    161,712.30x = 36,679,915,396.22
  5. Step 5: Solve for x
    x = 36,679,915,396.22/161,712.30
  6. Step 6: Final answer
    x = 226,822.05

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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.