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Finding the Fourth Proportional to 74,376.96, 111,566.61 and 74,267.61

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Solution

The fourth proportional to 74,376.96, 111,566.61 and 74,267.61 is: 111,402.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,376.96 : 111,566.61 = 74,267.61 : x
  2. Step 2: Convert to fraction form
    74,376.96/111,566.61 = 74,267.61/x
  3. Step 3: Cross multiply
    74,376.96x = 111,566.61 × 74,267.61
  4. Step 4: Simplify right side
    74,376.96x = 8,285,785,480.50
  5. Step 5: Solve for x
    x = 8,285,785,480.50/74,376.96
  6. Step 6: Final answer
    x = 111,402.58

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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.