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Finding the Fourth Proportional to 85,737.56, 118,348.86 and 69,794.33

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Solution

The fourth proportional to 85,737.56, 118,348.86 and 69,794.33 is: 96,341.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,737.56 : 118,348.86 = 69,794.33 : x
  2. Step 2: Convert to fraction form
    85,737.56/118,348.86 = 69,794.33/x
  3. Step 3: Cross multiply
    85,737.56x = 118,348.86 × 69,794.33
  4. Step 4: Simplify right side
    85,737.56x = 8,260,079,389.96
  5. Step 5: Solve for x
    x = 8,260,079,389.96/85,737.56
  6. Step 6: Final answer
    x = 96,341.43

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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.