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Finding the Fourth Proportional to 395,927.50, 593,990.28 and 115,444.76

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Solution

The fourth proportional to 395,927.50, 593,990.28 and 115,444.76 is: 173,196.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,927.50 : 593,990.28 = 115,444.76 : x
  2. Step 2: Convert to fraction form
    395,927.50/593,990.28 = 115,444.76/x
  3. Step 3: Cross multiply
    395,927.50x = 593,990.28 × 115,444.76
  4. Step 4: Simplify right side
    395,927.50x = 68,573,065,316.93
  5. Step 5: Solve for x
    x = 68,573,065,316.93/395,927.50
  6. Step 6: Final answer
    x = 173,196.02

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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.