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Finding the Fourth Proportional to 157,892.41, 217,891.58 and 85,295.33

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Solution

The fourth proportional to 157,892.41, 217,891.58 and 85,295.33 is: 117,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,892.41 : 217,891.58 = 85,295.33 : x
  2. Step 2: Convert to fraction form
    157,892.41/217,891.58 = 85,295.33/x
  3. Step 3: Cross multiply
    157,892.41x = 217,891.58 × 85,295.33
  4. Step 4: Simplify right side
    157,892.41x = 18,585,134,220.32
  5. Step 5: Solve for x
    x = 18,585,134,220.32/157,892.41
  6. Step 6: Final answer
    x = 117,707.58

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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.