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Finding the Fourth Proportional to 199,519.42, 299,212.73 and 64,551.43

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Solution

The fourth proportional to 199,519.42, 299,212.73 and 64,551.43 is: 96,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,519.42 : 299,212.73 = 64,551.43 : x
  2. Step 2: Convert to fraction form
    199,519.42/299,212.73 = 64,551.43/x
  3. Step 3: Cross multiply
    199,519.42x = 299,212.73 × 64,551.43
  4. Step 4: Simplify right side
    199,519.42x = 19,314,609,595.70
  5. Step 5: Solve for x
    x = 19,314,609,595.70/199,519.42
  6. Step 6: Final answer
    x = 96,805.66

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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.