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Finding the Fourth Proportional to 199,694.39, 275,613.86 and 118,019.28

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Solution

The fourth proportional to 199,694.39, 275,613.86 and 118,019.28 is: 162,887.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,694.39 : 275,613.86 = 118,019.28 : x
  2. Step 2: Convert to fraction form
    199,694.39/275,613.86 = 118,019.28/x
  3. Step 3: Cross multiply
    199,694.39x = 275,613.86 × 118,019.28
  4. Step 4: Simplify right side
    199,694.39x = 32,527,748,725.12
  5. Step 5: Solve for x
    x = 32,527,748,725.12/199,694.39
  6. Step 6: Final answer
    x = 162,887.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.