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Finding the Fourth Proportional to 199,723.32, 299,484.62 and 66,556.92

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Solution

The fourth proportional to 199,723.32, 299,484.62 and 66,556.92 is: 99,801.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,723.32 : 299,484.62 = 66,556.92 : x
  2. Step 2: Convert to fraction form
    199,723.32/299,484.62 = 66,556.92/x
  3. Step 3: Cross multiply
    199,723.32x = 299,484.62 × 66,556.92
  4. Step 4: Simplify right side
    199,723.32x = 19,932,773,894.57
  5. Step 5: Solve for x
    x = 19,932,773,894.57/199,723.32
  6. Step 6: Final answer
    x = 99,801.94

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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.