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Finding the Fourth Proportional to 105,523.94, 158,287.94 and 38,929.79

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Solution

The fourth proportional to 105,523.94, 158,287.94 and 38,929.79 is: 58,395.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,523.94 : 158,287.94 = 38,929.79 : x
  2. Step 2: Convert to fraction form
    105,523.94/158,287.94 = 38,929.79/x
  3. Step 3: Cross multiply
    105,523.94x = 158,287.94 × 38,929.79
  4. Step 4: Simplify right side
    105,523.94x = 6,162,116,069.08
  5. Step 5: Solve for x
    x = 6,162,116,069.08/105,523.94
  6. Step 6: Final answer
    x = 58,395.43

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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.