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Finding the Fourth Proportional to 114,997.82, 158,585.73 and 74,722.46

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Solution

The fourth proportional to 114,997.82, 158,585.73 and 74,722.46 is: 103,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,997.82 : 158,585.73 = 74,722.46 : x
  2. Step 2: Convert to fraction form
    114,997.82/158,585.73 = 74,722.46/x
  3. Step 3: Cross multiply
    114,997.82x = 158,585.73 × 74,722.46
  4. Step 4: Simplify right side
    114,997.82x = 11,849,915,866.50
  5. Step 5: Solve for x
    x = 11,849,915,866.50/114,997.82
  6. Step 6: Final answer
    x = 103,044.70

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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.