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Finding the Fourth Proportional to 70,080.85, 105,058.74 and 25,697.24

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Solution

The fourth proportional to 70,080.85, 105,058.74 and 25,697.24 is: 38,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,080.85 : 105,058.74 = 25,697.24 : x
  2. Step 2: Convert to fraction form
    70,080.85/105,058.74 = 25,697.24/x
  3. Step 3: Cross multiply
    70,080.85x = 105,058.74 × 25,697.24
  4. Step 4: Simplify right side
    70,080.85x = 2,699,719,655.88
  5. Step 5: Solve for x
    x = 2,699,719,655.88/70,080.85
  6. Step 6: Final answer
    x = 38,522.93

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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.