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Finding the Fourth Proportional to 70,401.54, 105,901.98 and 63,817.44

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Solution

The fourth proportional to 70,401.54, 105,901.98 and 63,817.44 is: 95,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,401.54 : 105,901.98 = 63,817.44 : x
  2. Step 2: Convert to fraction form
    70,401.54/105,901.98 = 63,817.44/x
  3. Step 3: Cross multiply
    70,401.54x = 105,901.98 × 63,817.44
  4. Step 4: Simplify right side
    70,401.54x = 6,758,393,254.53
  5. Step 5: Solve for x
    x = 6,758,393,254.53/70,401.54
  6. Step 6: Final answer
    x = 95,997.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.