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Finding the Fourth Proportional to 251,571.69, 377,440.56 and 101,730.20

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Solution

The fourth proportional to 251,571.69, 377,440.56 and 101,730.20 is: 152,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,571.69 : 377,440.56 = 101,730.20 : x
  2. Step 2: Convert to fraction form
    251,571.69/377,440.56 = 101,730.20/x
  3. Step 3: Cross multiply
    251,571.69x = 377,440.56 × 101,730.20
  4. Step 4: Simplify right side
    251,571.69x = 38,397,101,769.71
  5. Step 5: Solve for x
    x = 38,397,101,769.71/251,571.69
  6. Step 6: Final answer
    x = 152,628.87

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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.