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Finding the Fourth Proportional to 115,776.84, 173,664.81 and 76,046.52

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Solution

The fourth proportional to 115,776.84, 173,664.81 and 76,046.52 is: 114,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,776.84 : 173,664.81 = 76,046.52 : x
  2. Step 2: Convert to fraction form
    115,776.84/173,664.81 = 76,046.52/x
  3. Step 3: Cross multiply
    115,776.84x = 173,664.81 × 76,046.52
  4. Step 4: Simplify right side
    115,776.84x = 13,206,604,446.96
  5. Step 5: Solve for x
    x = 13,206,604,446.96/115,776.84
  6. Step 6: Final answer
    x = 114,069.48

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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.