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Finding the Fourth Proportional to 168,633.93, 252,944.86 and 42,275.22

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Solution

The fourth proportional to 168,633.93, 252,944.86 and 42,275.22 is: 63,411.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,633.93 : 252,944.86 = 42,275.22 : x
  2. Step 2: Convert to fraction form
    168,633.93/252,944.86 = 42,275.22/x
  3. Step 3: Cross multiply
    168,633.93x = 252,944.86 × 42,275.22
  4. Step 4: Simplify right side
    168,633.93x = 10,693,299,604.37
  5. Step 5: Solve for x
    x = 10,693,299,604.37/168,633.93
  6. Step 6: Final answer
    x = 63,411.32

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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.