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Finding the Fourth Proportional to 157,847.92, 217,827.39 and 86,226.10

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Solution

The fourth proportional to 157,847.92, 217,827.39 and 86,226.10 is: 118,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,847.92 : 217,827.39 = 86,226.10 : x
  2. Step 2: Convert to fraction form
    157,847.92/217,827.39 = 86,226.10/x
  3. Step 3: Cross multiply
    157,847.92x = 217,827.39 × 86,226.10
  4. Step 4: Simplify right side
    157,847.92x = 18,782,406,091.66
  5. Step 5: Solve for x
    x = 18,782,406,091.66/157,847.92
  6. Step 6: Final answer
    x = 118,990.52

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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.