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Finding the Fourth Proportional to 395,543.82, 593,076.51 and 155,370.21

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Solution

The fourth proportional to 395,543.82, 593,076.51 and 155,370.21 is: 232,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,543.82 : 593,076.51 = 155,370.21 : x
  2. Step 2: Convert to fraction form
    395,543.82/593,076.51 = 155,370.21/x
  3. Step 3: Cross multiply
    395,543.82x = 593,076.51 × 155,370.21
  4. Step 4: Simplify right side
    395,543.82x = 92,146,421,904.77
  5. Step 5: Solve for x
    x = 92,146,421,904.77/395,543.82
  6. Step 6: Final answer
    x = 232,961.35

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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.