Home / 74,508.38-111,762.83-70,771.04

Finding the Fourth Proportional to 74,508.38, 111,762.83 and 70,771.04

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Solution

The fourth proportional to 74,508.38, 111,762.83 and 70,771.04 is: 106,156.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,508.38 : 111,762.83 = 70,771.04 : x
  2. Step 2: Convert to fraction form
    74,508.38/111,762.83 = 70,771.04/x
  3. Step 3: Cross multiply
    74,508.38x = 111,762.83 × 70,771.04
  4. Step 4: Simplify right side
    74,508.38x = 7,909,571,330.56
  5. Step 5: Solve for x
    x = 7,909,571,330.56/74,508.38
  6. Step 6: Final answer
    x = 106,156.81

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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.