Home / 71,577.07-107,199.45-69,086.01

Finding the Fourth Proportional to 71,577.07, 107,199.45 and 69,086.01

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Solution

The fourth proportional to 71,577.07, 107,199.45 and 69,086.01 is: 103,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,577.07 : 107,199.45 = 69,086.01 : x
  2. Step 2: Convert to fraction form
    71,577.07/107,199.45 = 69,086.01/x
  3. Step 3: Cross multiply
    71,577.07x = 107,199.45 × 69,086.01
  4. Step 4: Simplify right side
    71,577.07x = 7,405,982,676.69
  5. Step 5: Solve for x
    x = 7,405,982,676.69/71,577.07
  6. Step 6: Final answer
    x = 103,468.65

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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.