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Finding the Fourth Proportional to 70,394.49, 97,144.45 and 38,563.45

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Solution

The fourth proportional to 70,394.49, 97,144.45 and 38,563.45 is: 53,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,394.49 : 97,144.45 = 38,563.45 : x
  2. Step 2: Convert to fraction form
    70,394.49/97,144.45 = 38,563.45/x
  3. Step 3: Cross multiply
    70,394.49x = 97,144.45 × 38,563.45
  4. Step 4: Simplify right side
    70,394.49x = 3,746,224,801.08
  5. Step 5: Solve for x
    x = 3,746,224,801.08/70,394.49
  6. Step 6: Final answer
    x = 53,217.59

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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.