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Finding the Fourth Proportional to 111,906.10, 168,053.55 and 59,418.10

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Solution

The fourth proportional to 111,906.10, 168,053.55 and 59,418.10 is: 89,230.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,906.10 : 168,053.55 = 59,418.10 : x
  2. Step 2: Convert to fraction form
    111,906.10/168,053.55 = 59,418.10/x
  3. Step 3: Cross multiply
    111,906.10x = 168,053.55 × 59,418.10
  4. Step 4: Simplify right side
    111,906.10x = 9,985,422,639.26
  5. Step 5: Solve for x
    x = 9,985,422,639.26/111,906.10
  6. Step 6: Final answer
    x = 89,230.37

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1.5x scale

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.