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Finding the Fourth Proportional to 66,101.90, 99,118.83 and 26,648.42

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Solution

The fourth proportional to 66,101.90, 99,118.83 and 26,648.42 is: 39,958.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,101.90 : 99,118.83 = 26,648.42 : x
  2. Step 2: Convert to fraction form
    66,101.90/99,118.83 = 26,648.42/x
  3. Step 3: Cross multiply
    66,101.90x = 99,118.83 × 26,648.42
  4. Step 4: Simplify right side
    66,101.90x = 2,641,360,459.55
  5. Step 5: Solve for x
    x = 2,641,360,459.55/66,101.90
  6. Step 6: Final answer
    x = 39,958.92

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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.