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Finding the Fourth Proportional to 70,396.62, 97,148.44 and 38,563.42

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Solution

The fourth proportional to 70,396.62, 97,148.44 and 38,563.42 is: 53,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,396.62 : 97,148.44 = 38,563.42 : x
  2. Step 2: Convert to fraction form
    70,396.62/97,148.44 = 38,563.42/x
  3. Step 3: Cross multiply
    70,396.62x = 97,148.44 × 38,563.42
  4. Step 4: Simplify right side
    70,396.62x = 3,746,376,094.06
  5. Step 5: Solve for x
    x = 3,746,376,094.06/70,396.62
  6. Step 6: Final answer
    x = 53,218.12

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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.