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Finding the Fourth Proportional to 105,651.70, 158,214.65 and 73,913.19

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Solution

The fourth proportional to 105,651.70, 158,214.65 and 73,913.19 is: 110,685.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,651.70 : 158,214.65 = 73,913.19 : x
  2. Step 2: Convert to fraction form
    105,651.70/158,214.65 = 73,913.19/x
  3. Step 3: Cross multiply
    105,651.70x = 158,214.65 × 73,913.19
  4. Step 4: Simplify right side
    105,651.70x = 11,694,148,695.16
  5. Step 5: Solve for x
    x = 11,694,148,695.16/105,651.70
  6. Step 6: Final answer
    x = 110,685.86

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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.