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Finding the Fourth Proportional to 92,963.77, 139,424.08 and 45,531.54

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Solution

The fourth proportional to 92,963.77, 139,424.08 and 45,531.54 is: 68,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,963.77 : 139,424.08 = 45,531.54 : x
  2. Step 2: Convert to fraction form
    92,963.77/139,424.08 = 45,531.54/x
  3. Step 3: Cross multiply
    92,963.77x = 139,424.08 × 45,531.54
  4. Step 4: Simplify right side
    92,963.77x = 6,348,193,075.48
  5. Step 5: Solve for x
    x = 6,348,193,075.48/92,963.77
  6. Step 6: Final answer
    x = 68,286.74

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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.