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Finding the Fourth Proportional to 66,719.93, 100,068.73 and 29,269.96

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Solution

The fourth proportional to 66,719.93, 100,068.73 and 29,269.96 is: 43,900.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,719.93 : 100,068.73 = 29,269.96 : x
  2. Step 2: Convert to fraction form
    66,719.93/100,068.73 = 29,269.96/x
  3. Step 3: Cross multiply
    66,719.93x = 100,068.73 × 29,269.96
  4. Step 4: Simplify right side
    66,719.93x = 2,929,007,401.00
  5. Step 5: Solve for x
    x = 2,929,007,401.00/66,719.93
  6. Step 6: Final answer
    x = 43,900.04

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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.