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Finding the Fourth Proportional to 66,045.67, 91,143.01 and 37,751.96

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Solution

The fourth proportional to 66,045.67, 91,143.01 and 37,751.96 is: 52,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,045.67 : 91,143.01 = 37,751.96 : x
  2. Step 2: Convert to fraction form
    66,045.67/91,143.01 = 37,751.96/x
  3. Step 3: Cross multiply
    66,045.67x = 91,143.01 × 37,751.96
  4. Step 4: Simplify right side
    66,045.67x = 3,440,827,542.85
  5. Step 5: Solve for x
    x = 3,440,827,542.85/66,045.67
  6. Step 6: Final answer
    x = 52,097.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.