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Finding the Fourth Proportional to 272,949.01, 409,146.13 and 113,111.90

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Solution

The fourth proportional to 272,949.01, 409,146.13 and 113,111.90 is: 169,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,949.01 : 409,146.13 = 113,111.90 : x
  2. Step 2: Convert to fraction form
    272,949.01/409,146.13 = 113,111.90/x
  3. Step 3: Cross multiply
    272,949.01x = 409,146.13 × 113,111.90
  4. Step 4: Simplify right side
    272,949.01x = 46,279,295,771.90
  5. Step 5: Solve for x
    x = 46,279,295,771.90/272,949.01
  6. Step 6: Final answer
    x = 169,552.90

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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.