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Finding the Fourth Proportional to 251,154.98, 376,751.76 and 71,237.32

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Solution

The fourth proportional to 251,154.98, 376,751.76 and 71,237.32 is: 106,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,154.98 : 376,751.76 = 71,237.32 : x
  2. Step 2: Convert to fraction form
    251,154.98/376,751.76 = 71,237.32/x
  3. Step 3: Cross multiply
    251,154.98x = 376,751.76 × 71,237.32
  4. Step 4: Simplify right side
    251,154.98x = 26,838,785,687.68
  5. Step 5: Solve for x
    x = 26,838,785,687.68/251,154.98
  6. Step 6: Final answer
    x = 106,861.45

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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.