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Finding the Fourth Proportional to 68,361.95, 94,314.57 and 42,518.80

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Solution

The fourth proportional to 68,361.95, 94,314.57 and 42,518.80 is: 58,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,361.95 : 94,314.57 = 42,518.80 : x
  2. Step 2: Convert to fraction form
    68,361.95/94,314.57 = 42,518.80/x
  3. Step 3: Cross multiply
    68,361.95x = 94,314.57 × 42,518.80
  4. Step 4: Simplify right side
    68,361.95x = 4,010,142,338.92
  5. Step 5: Solve for x
    x = 4,010,142,338.92/68,361.95
  6. Step 6: Final answer
    x = 58,660.44

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1.5x scale

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.