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Finding the Fourth Proportional to 68,411.80, 94,447.52 and 52,151.44

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Solution

The fourth proportional to 68,411.80, 94,447.52 and 52,151.44 is: 71,998.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,411.80 : 94,447.52 = 52,151.44 : x
  2. Step 2: Convert to fraction form
    68,411.80/94,447.52 = 52,151.44/x
  3. Step 3: Cross multiply
    68,411.80x = 94,447.52 × 52,151.44
  4. Step 4: Simplify right side
    68,411.80x = 4,925,574,172.43
  5. Step 5: Solve for x
    x = 4,925,574,172.43/68,411.80
  6. Step 6: Final answer
    x = 71,998.90

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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.