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Finding the Fourth Proportional to 70,244.66, 96,939.41 and 38,415.92

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Solution

The fourth proportional to 70,244.66, 96,939.41 and 38,415.92 is: 53,014.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,244.66 : 96,939.41 = 38,415.92 : x
  2. Step 2: Convert to fraction form
    70,244.66/96,939.41 = 38,415.92/x
  3. Step 3: Cross multiply
    70,244.66x = 96,939.41 × 38,415.92
  4. Step 4: Simplify right side
    70,244.66x = 3,724,015,942.63
  5. Step 5: Solve for x
    x = 3,724,015,942.63/70,244.66
  6. Step 6: Final answer
    x = 53,014.93

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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.