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Finding the Fourth Proportional to 124,474.66, 171,745.50 and 70,755.46

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Solution

The fourth proportional to 124,474.66, 171,745.50 and 70,755.46 is: 97,625.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,474.66 : 171,745.50 = 70,755.46 : x
  2. Step 2: Convert to fraction form
    124,474.66/171,745.50 = 70,755.46/x
  3. Step 3: Cross multiply
    124,474.66x = 171,745.50 × 70,755.46
  4. Step 4: Simplify right side
    124,474.66x = 12,151,931,855.43
  5. Step 5: Solve for x
    x = 12,151,931,855.43/124,474.66
  6. Step 6: Final answer
    x = 97,625.75

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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.