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Finding the Fourth Proportional to 161,394.62, 242,091.95 and 43,066.40

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Solution

The fourth proportional to 161,394.62, 242,091.95 and 43,066.40 is: 64,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,394.62 : 242,091.95 = 43,066.40 : x
  2. Step 2: Convert to fraction form
    161,394.62/242,091.95 = 43,066.40/x
  3. Step 3: Cross multiply
    161,394.62x = 242,091.95 × 43,066.40
  4. Step 4: Simplify right side
    161,394.62x = 10,426,028,755.48
  5. Step 5: Solve for x
    x = 10,426,028,755.48/161,394.62
  6. Step 6: Final answer
    x = 64,599.61

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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.