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Finding the Fourth Proportional to 70,396.58, 97,154.25 and 40,186.44

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Solution

The fourth proportional to 70,396.58, 97,154.25 and 40,186.44 is: 55,461.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,396.58 : 97,154.25 = 40,186.44 : x
  2. Step 2: Convert to fraction form
    70,396.58/97,154.25 = 40,186.44/x
  3. Step 3: Cross multiply
    70,396.58x = 97,154.25 × 40,186.44
  4. Step 4: Simplify right side
    70,396.58x = 3,904,283,438.37
  5. Step 5: Solve for x
    x = 3,904,283,438.37/70,396.58
  6. Step 6: Final answer
    x = 55,461.27

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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.