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Finding the Fourth Proportional to 354,637.73, 531,494.88 and 144,029.63

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Solution

The fourth proportional to 354,637.73, 531,494.88 and 144,029.63 is: 215,856.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,637.73 : 531,494.88 = 144,029.63 : x
  2. Step 2: Convert to fraction form
    354,637.73/531,494.88 = 144,029.63/x
  3. Step 3: Cross multiply
    354,637.73x = 531,494.88 × 144,029.63
  4. Step 4: Simplify right side
    354,637.73x = 76,551,008,255.82
  5. Step 5: Solve for x
    x = 76,551,008,255.82/354,637.73
  6. Step 6: Final answer
    x = 215,856.92

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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.