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Finding the Fourth Proportional to 458,250.45, 687,211.64 and 158,650.58

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Solution

The fourth proportional to 458,250.45, 687,211.64 and 158,650.58 is: 237,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,250.45 : 687,211.64 = 158,650.58 : x
  2. Step 2: Convert to fraction form
    458,250.45/687,211.64 = 158,650.58/x
  3. Step 3: Cross multiply
    458,250.45x = 687,211.64 × 158,650.58
  4. Step 4: Simplify right side
    458,250.45x = 109,026,521,039.44
  5. Step 5: Solve for x
    x = 109,026,521,039.44/458,250.45
  6. Step 6: Final answer
    x = 237,919.07

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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.