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Finding the Fourth Proportional to 68,161.60, 94,099.90 and 47,806.16

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Solution

The fourth proportional to 68,161.60, 94,099.90 and 47,806.16 is: 65,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,161.60 : 94,099.90 = 47,806.16 : x
  2. Step 2: Convert to fraction form
    68,161.60/94,099.90 = 47,806.16/x
  3. Step 3: Cross multiply
    68,161.60x = 94,099.90 × 47,806.16
  4. Step 4: Simplify right side
    68,161.60x = 4,498,554,875.38
  5. Step 5: Solve for x
    x = 4,498,554,875.38/68,161.60
  6. Step 6: Final answer
    x = 65,998.38

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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.