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Finding the Fourth Proportional to 70,750.95, 106,126.44 and 48,496.86

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Solution

The fourth proportional to 70,750.95, 106,126.44 and 48,496.86 is: 72,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,750.95 : 106,126.44 = 48,496.86 : x
  2. Step 2: Convert to fraction form
    70,750.95/106,126.44 = 48,496.86/x
  3. Step 3: Cross multiply
    70,750.95x = 106,126.44 × 48,496.86
  4. Step 4: Simplify right side
    70,750.95x = 5,146,799,102.98
  5. Step 5: Solve for x
    x = 5,146,799,102.98/70,750.95
  6. Step 6: Final answer
    x = 72,745.30

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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.