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Finding the Fourth Proportional to 61,157.65, 91,661.19 and 29,153.56

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Solution

The fourth proportional to 61,157.65, 91,661.19 and 29,153.56 is: 43,694.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,157.65 : 91,661.19 = 29,153.56 : x
  2. Step 2: Convert to fraction form
    61,157.65/91,661.19 = 29,153.56/x
  3. Step 3: Cross multiply
    61,157.65x = 91,661.19 × 29,153.56
  4. Step 4: Simplify right side
    61,157.65x = 2,672,250,002.34
  5. Step 5: Solve for x
    x = 2,672,250,002.34/61,157.65
  6. Step 6: Final answer
    x = 43,694.45

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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.