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Finding the Fourth Proportional to 199,530.97, 299,401.55 and 115,350.25

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Solution

The fourth proportional to 199,530.97, 299,401.55 and 115,350.25 is: 173,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,530.97 : 299,401.55 = 115,350.25 : x
  2. Step 2: Convert to fraction form
    199,530.97/299,401.55 = 115,350.25/x
  3. Step 3: Cross multiply
    199,530.97x = 299,401.55 × 115,350.25
  4. Step 4: Simplify right side
    199,530.97x = 34,536,042,317.63
  5. Step 5: Solve for x
    x = 34,536,042,317.63/199,530.97
  6. Step 6: Final answer
    x = 173,086.13

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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.