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Finding the Fourth Proportional to 458,249.44, 687,210.14 and 158,649.58

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Solution

The fourth proportional to 458,249.44, 687,210.14 and 158,649.58 is: 237,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,249.44 : 687,210.14 = 158,649.58 : x
  2. Step 2: Convert to fraction form
    458,249.44/687,210.14 = 158,649.58/x
  3. Step 3: Cross multiply
    458,249.44x = 687,210.14 × 158,649.58
  4. Step 4: Simplify right side
    458,249.44x = 109,025,600,082.74
  5. Step 5: Solve for x
    x = 109,025,600,082.74/458,249.44
  6. Step 6: Final answer
    x = 237,917.58

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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.