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Finding the Fourth Proportional to 395,881.63, 593,822.59 and 143,156.54

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Solution

The fourth proportional to 395,881.63, 593,822.59 and 143,156.54 is: 214,734.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,881.63 : 593,822.59 = 143,156.54 : x
  2. Step 2: Convert to fraction form
    395,881.63/593,822.59 = 143,156.54/x
  3. Step 3: Cross multiply
    395,881.63x = 593,822.59 × 143,156.54
  4. Step 4: Simplify right side
    395,881.63x = 85,009,587,620.03
  5. Step 5: Solve for x
    x = 85,009,587,620.03/395,881.63
  6. Step 6: Final answer
    x = 214,734.86

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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.