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Finding the Fourth Proportional to 188,508.44, 260,135.06 and 103,624.89

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Solution

The fourth proportional to 188,508.44, 260,135.06 and 103,624.89 is: 142,998.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,508.44 : 260,135.06 = 103,624.89 : x
  2. Step 2: Convert to fraction form
    188,508.44/260,135.06 = 103,624.89/x
  3. Step 3: Cross multiply
    188,508.44x = 260,135.06 × 103,624.89
  4. Step 4: Simplify right side
    188,508.44x = 26,956,466,459.52
  5. Step 5: Solve for x
    x = 26,956,466,459.52/188,508.44
  6. Step 6: Final answer
    x = 142,998.73

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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.