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Finding the Fourth Proportional to 202,766.72, 279,705.84 and 117,874.40

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Solution

The fourth proportional to 202,766.72, 279,705.84 and 117,874.40 is: 162,601.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,766.72 : 279,705.84 = 117,874.40 : x
  2. Step 2: Convert to fraction form
    202,766.72/279,705.84 = 117,874.40/x
  3. Step 3: Cross multiply
    202,766.72x = 279,705.84 × 117,874.40
  4. Step 4: Simplify right side
    202,766.72x = 32,970,158,066.50
  5. Step 5: Solve for x
    x = 32,970,158,066.50/202,766.72
  6. Step 6: Final answer
    x = 162,601.43

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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.