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Finding the Fourth Proportional to 103,164.60, 154,766.46 and 73,508.88

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Solution

The fourth proportional to 103,164.60, 154,766.46 and 73,508.88 is: 110,277.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,164.60 : 154,766.46 = 73,508.88 : x
  2. Step 2: Convert to fraction form
    103,164.60/154,766.46 = 73,508.88/x
  3. Step 3: Cross multiply
    103,164.60x = 154,766.46 × 73,508.88
  4. Step 4: Simplify right side
    103,164.60x = 11,376,709,136.16
  5. Step 5: Solve for x
    x = 11,376,709,136.16/103,164.60
  6. Step 6: Final answer
    x = 110,277.26

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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.