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Finding the Fourth Proportional to 161,287.15, 241,881.52 and 42,943.11

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Solution

The fourth proportional to 161,287.15, 241,881.52 and 42,943.11 is: 64,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,287.15 : 241,881.52 = 42,943.11 : x
  2. Step 2: Convert to fraction form
    161,287.15/241,881.52 = 42,943.11/x
  3. Step 3: Cross multiply
    161,287.15x = 241,881.52 × 42,943.11
  4. Step 4: Simplify right side
    161,287.15x = 10,387,145,026.24
  5. Step 5: Solve for x
    x = 10,387,145,026.24/161,287.15
  6. Step 6: Final answer
    x = 64,401.57

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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.