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Finding the Fourth Proportional to 70,199.56, 96,872.05 and 38,368.49

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Solution

The fourth proportional to 70,199.56, 96,872.05 and 38,368.49 is: 52,946.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,199.56 : 96,872.05 = 38,368.49 : x
  2. Step 2: Convert to fraction form
    70,199.56/96,872.05 = 38,368.49/x
  3. Step 3: Cross multiply
    70,199.56x = 96,872.05 × 38,368.49
  4. Step 4: Simplify right side
    70,199.56x = 3,716,833,845.30
  5. Step 5: Solve for x
    x = 3,716,833,845.30/70,199.56
  6. Step 6: Final answer
    x = 52,946.68

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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.