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Finding the Fourth Proportional to 113,499.10, 169,920.60 and 110,218.60

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Solution

The fourth proportional to 113,499.10, 169,920.60 and 110,218.60 is: 165,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,499.10 : 169,920.60 = 110,218.60 : x
  2. Step 2: Convert to fraction form
    113,499.10/169,920.60 = 110,218.60/x
  3. Step 3: Cross multiply
    113,499.10x = 169,920.60 × 110,218.60
  4. Step 4: Simplify right side
    113,499.10x = 18,728,410,643.16
  5. Step 5: Solve for x
    x = 18,728,410,643.16/113,499.10
  6. Step 6: Final answer
    x = 165,009.33

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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.