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Finding the Fourth Proportional to 74,620.74, 111,957.85 and 37,177.48

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Solution

The fourth proportional to 74,620.74, 111,957.85 and 37,177.48 is: 55,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,620.74 : 111,957.85 = 37,177.48 : x
  2. Step 2: Convert to fraction form
    74,620.74/111,957.85 = 37,177.48/x
  3. Step 3: Cross multiply
    74,620.74x = 111,957.85 × 37,177.48
  4. Step 4: Simplify right side
    74,620.74x = 4,162,310,706.51
  5. Step 5: Solve for x
    x = 4,162,310,706.51/74,620.74
  6. Step 6: Final answer
    x = 55,779.54

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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.