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Finding the Fourth Proportional to 85,303.34, 117,680.43 and 49,472.53

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Solution

The fourth proportional to 85,303.34, 117,680.43 and 49,472.53 is: 68,249.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,303.34 : 117,680.43 = 49,472.53 : x
  2. Step 2: Convert to fraction form
    85,303.34/117,680.43 = 49,472.53/x
  3. Step 3: Cross multiply
    85,303.34x = 117,680.43 × 49,472.53
  4. Step 4: Simplify right side
    85,303.34x = 5,821,948,603.59
  5. Step 5: Solve for x
    x = 5,821,948,603.59/85,303.34
  6. Step 6: Final answer
    x = 68,249.95

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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.