Home / 74,074.90-111,174.57-69,404.04

Finding the Fourth Proportional to 74,074.90, 111,174.57 and 69,404.04

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Solution

The fourth proportional to 74,074.90, 111,174.57 and 69,404.04 is: 104,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,074.90 : 111,174.57 = 69,404.04 : x
  2. Step 2: Convert to fraction form
    74,074.90/111,174.57 = 69,404.04/x
  3. Step 3: Cross multiply
    74,074.90x = 111,174.57 × 69,404.04
  4. Step 4: Simplify right side
    74,074.90x = 7,715,964,303.26
  5. Step 5: Solve for x
    x = 7,715,964,303.26/74,074.90
  6. Step 6: Final answer
    x = 104,164.36

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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.