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Finding the Fourth Proportional to 115,909.39, 173,864.09 and 63,290.17

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Solution

The fourth proportional to 115,909.39, 173,864.09 and 63,290.17 is: 94,935.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,909.39 : 173,864.09 = 63,290.17 : x
  2. Step 2: Convert to fraction form
    115,909.39/173,864.09 = 63,290.17/x
  3. Step 3: Cross multiply
    115,909.39x = 173,864.09 × 63,290.17
  4. Step 4: Simplify right side
    115,909.39x = 11,003,887,813.00
  5. Step 5: Solve for x
    x = 11,003,887,813.00/115,909.39
  6. Step 6: Final answer
    x = 94,935.26

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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.