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Finding the Fourth Proportional to 251,801.45, 377,702.21 and 83,276.54

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Solution

The fourth proportional to 251,801.45, 377,702.21 and 83,276.54 is: 124,914.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,801.45 : 377,702.21 = 83,276.54 : x
  2. Step 2: Convert to fraction form
    251,801.45/377,702.21 = 83,276.54/x
  3. Step 3: Cross multiply
    251,801.45x = 377,702.21 × 83,276.54
  4. Step 4: Simplify right side
    251,801.45x = 31,453,732,935.22
  5. Step 5: Solve for x
    x = 31,453,732,935.22/251,801.45
  6. Step 6: Final answer
    x = 124,914.82

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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.