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Finding the Fourth Proportional to 115,814.58, 173,747.37 and 65,918.16

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Solution

The fourth proportional to 115,814.58, 173,747.37 and 65,918.16 is: 98,891.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,814.58 : 173,747.37 = 65,918.16 : x
  2. Step 2: Convert to fraction form
    115,814.58/173,747.37 = 65,918.16/x
  3. Step 3: Cross multiply
    115,814.58x = 173,747.37 × 65,918.16
  4. Step 4: Simplify right side
    115,814.58x = 11,453,106,935.24
  5. Step 5: Solve for x
    x = 11,453,106,935.24/115,814.58
  6. Step 6: Final answer
    x = 98,891.75

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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.