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Finding the Fourth Proportional to 105,402.66, 158,166.24 and 38,889.24

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Solution

The fourth proportional to 105,402.66, 158,166.24 and 38,889.24 is: 58,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,402.66 : 158,166.24 = 38,889.24 : x
  2. Step 2: Convert to fraction form
    105,402.66/158,166.24 = 38,889.24/x
  3. Step 3: Cross multiply
    105,402.66x = 158,166.24 × 38,889.24
  4. Step 4: Simplify right side
    105,402.66x = 6,150,964,867.26
  5. Step 5: Solve for x
    x = 6,150,964,867.26/105,402.66
  6. Step 6: Final answer
    x = 58,356.83

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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.