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Finding the Fourth Proportional to 70,395.88, 97,141.24 and 38,559.64

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Solution

The fourth proportional to 70,395.88, 97,141.24 and 38,559.64 is: 53,209.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,395.88 : 97,141.24 = 38,559.64 : x
  2. Step 2: Convert to fraction form
    70,395.88/97,141.24 = 38,559.64/x
  3. Step 3: Cross multiply
    70,395.88x = 97,141.24 × 38,559.64
  4. Step 4: Simplify right side
    70,395.88x = 3,745,731,243.55
  5. Step 5: Solve for x
    x = 3,745,731,243.55/70,395.88
  6. Step 6: Final answer
    x = 53,209.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.