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Finding the Fourth Proportional to 66,100.59, 99,116.87 and 26,647.11

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Solution

The fourth proportional to 66,100.59, 99,116.87 and 26,647.11 is: 39,956.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,100.59 : 99,116.87 = 26,647.11 : x
  2. Step 2: Convert to fraction form
    66,100.59/99,116.87 = 26,647.11/x
  3. Step 3: Cross multiply
    66,100.59x = 99,116.87 × 26,647.11
  4. Step 4: Simplify right side
    66,100.59x = 2,641,178,004.51
  5. Step 5: Solve for x
    x = 2,641,178,004.51/66,100.59
  6. Step 6: Final answer
    x = 39,956.95

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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.