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Finding the Fourth Proportional to 68,524.66, 102,642.15 and 35,143.06

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Solution

The fourth proportional to 68,524.66, 102,642.15 and 35,143.06 is: 52,640.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,524.66 : 102,642.15 = 35,143.06 : x
  2. Step 2: Convert to fraction form
    68,524.66/102,642.15 = 35,143.06/x
  3. Step 3: Cross multiply
    68,524.66x = 102,642.15 × 35,143.06
  4. Step 4: Simplify right side
    68,524.66x = 3,607,159,235.98
  5. Step 5: Solve for x
    x = 3,607,159,235.98/68,524.66
  6. Step 6: Final answer
    x = 52,640.31

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1.5x scale

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.