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Finding the Fourth Proportional to 71,850.64, 99,153.91 and 41,653.47

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Solution

The fourth proportional to 71,850.64, 99,153.91 and 41,653.47 is: 57,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,850.64 : 99,153.91 = 41,653.47 : x
  2. Step 2: Convert to fraction form
    71,850.64/99,153.91 = 41,653.47/x
  3. Step 3: Cross multiply
    71,850.64x = 99,153.91 × 41,653.47
  4. Step 4: Simplify right side
    71,850.64x = 4,130,103,711.53
  5. Step 5: Solve for x
    x = 4,130,103,711.53/71,850.64
  6. Step 6: Final answer
    x = 57,481.80

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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.