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Finding the Fourth Proportional to 68,490.36, 94,545.78 and 41,641.44

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Solution

The fourth proportional to 68,490.36, 94,545.78 and 41,641.44 is: 57,482.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,490.36 : 94,545.78 = 41,641.44 : x
  2. Step 2: Convert to fraction form
    68,490.36/94,545.78 = 41,641.44/x
  3. Step 3: Cross multiply
    68,490.36x = 94,545.78 × 41,641.44
  4. Step 4: Simplify right side
    68,490.36x = 3,937,022,108.55
  5. Step 5: Solve for x
    x = 3,937,022,108.55/68,490.36
  6. Step 6: Final answer
    x = 57,482.87

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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.