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Finding the Fourth Proportional to 99,291.55, 148,890.53 and 36,067.07

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Solution

The fourth proportional to 99,291.55, 148,890.53 and 36,067.07 is: 54,083.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,291.55 : 148,890.53 = 36,067.07 : x
  2. Step 2: Convert to fraction form
    99,291.55/148,890.53 = 36,067.07/x
  3. Step 3: Cross multiply
    99,291.55x = 148,890.53 × 36,067.07
  4. Step 4: Simplify right side
    99,291.55x = 5,370,045,528.80
  5. Step 5: Solve for x
    x = 5,370,045,528.80/99,291.55
  6. Step 6: Final answer
    x = 54,083.61

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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.