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Finding the Fourth Proportional to 395,423.51, 593,151.66 and 114,940.76

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Solution

The fourth proportional to 395,423.51, 593,151.66 and 114,940.76 is: 172,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,423.51 : 593,151.66 = 114,940.76 : x
  2. Step 2: Convert to fraction form
    395,423.51/593,151.66 = 114,940.76/x
  3. Step 3: Cross multiply
    395,423.51x = 593,151.66 × 114,940.76
  4. Step 4: Simplify right side
    395,423.51x = 68,177,299,629.90
  5. Step 5: Solve for x
    x = 68,177,299,629.90/395,423.51
  6. Step 6: Final answer
    x = 172,415.90

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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.