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Finding the Fourth Proportional to 169,639.70, 254,459.55 and 110,542.10

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Solution

The fourth proportional to 169,639.70, 254,459.55 and 110,542.10 is: 165,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,639.70 : 254,459.55 = 110,542.10 : x
  2. Step 2: Convert to fraction form
    169,639.70/254,459.55 = 110,542.10/x
  3. Step 3: Cross multiply
    169,639.70x = 254,459.55 × 110,542.10
  4. Step 4: Simplify right side
    169,639.70x = 28,128,493,022.06
  5. Step 5: Solve for x
    x = 28,128,493,022.06/169,639.70
  6. Step 6: Final answer
    x = 165,813.15

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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.