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Finding the Fourth Proportional to 98,584.57, 136,046.62 and 53,872.57

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Solution

The fourth proportional to 98,584.57, 136,046.62 and 53,872.57 is: 74,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,584.57 : 136,046.62 = 53,872.57 : x
  2. Step 2: Convert to fraction form
    98,584.57/136,046.62 = 53,872.57/x
  3. Step 3: Cross multiply
    98,584.57x = 136,046.62 × 53,872.57
  4. Step 4: Simplify right side
    98,584.57x = 7,329,181,059.21
  5. Step 5: Solve for x
    x = 7,329,181,059.21/98,584.57
  6. Step 6: Final answer
    x = 74,344.10

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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.