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Finding the Fourth Proportional to 395,372.16, 593,301.87 and 155,443.88

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Solution

The fourth proportional to 395,372.16, 593,301.87 and 155,443.88 is: 233,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,372.16 : 593,301.87 = 155,443.88 : x
  2. Step 2: Convert to fraction form
    395,372.16/593,301.87 = 155,443.88/x
  3. Step 3: Cross multiply
    395,372.16x = 593,301.87 × 155,443.88
  4. Step 4: Simplify right side
    395,372.16x = 92,225,141,717.55
  5. Step 5: Solve for x
    x = 92,225,141,717.55/395,372.16
  6. Step 6: Final answer
    x = 233,261.60

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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.