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Finding the Fourth Proportional to 74,592.57, 111,890.07 and 70,807.44

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Solution

The fourth proportional to 74,592.57, 111,890.07 and 70,807.44 is: 106,212.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,592.57 : 111,890.07 = 70,807.44 : x
  2. Step 2: Convert to fraction form
    74,592.57/111,890.07 = 70,807.44/x
  3. Step 3: Cross multiply
    74,592.57x = 111,890.07 × 70,807.44
  4. Step 4: Simplify right side
    74,592.57x = 7,922,649,418.12
  5. Step 5: Solve for x
    x = 7,922,649,418.12/74,592.57
  6. Step 6: Final answer
    x = 106,212.31

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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.