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Finding the Fourth Proportional to 125,222.58, 187,845.45 and 45,280.50

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Solution

The fourth proportional to 125,222.58, 187,845.45 and 45,280.50 is: 67,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,222.58 : 187,845.45 = 45,280.50 : x
  2. Step 2: Convert to fraction form
    125,222.58/187,845.45 = 45,280.50/x
  3. Step 3: Cross multiply
    125,222.58x = 187,845.45 × 45,280.50
  4. Step 4: Simplify right side
    125,222.58x = 8,505,735,898.73
  5. Step 5: Solve for x
    x = 8,505,735,898.73/125,222.58
  6. Step 6: Final answer
    x = 67,924.94

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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.