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Finding the Fourth Proportional to 115,498.75, 159,388.29 and 62,506.75

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Solution

The fourth proportional to 115,498.75, 159,388.29 and 62,506.75 is: 86,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,498.75 : 159,388.29 = 62,506.75 : x
  2. Step 2: Convert to fraction form
    115,498.75/159,388.29 = 62,506.75/x
  3. Step 3: Cross multiply
    115,498.75x = 159,388.29 × 62,506.75
  4. Step 4: Simplify right side
    115,498.75x = 9,962,843,995.96
  5. Step 5: Solve for x
    x = 9,962,843,995.96/115,498.75
  6. Step 6: Final answer
    x = 86,259.32

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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.