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Finding the Fourth Proportional to 157,466.41, 217,305.51 and 85,845.80

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Solution

The fourth proportional to 157,466.41, 217,305.51 and 85,845.80 is: 118,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,466.41 : 217,305.51 = 85,845.80 : x
  2. Step 2: Convert to fraction form
    157,466.41/217,305.51 = 85,845.80/x
  3. Step 3: Cross multiply
    157,466.41x = 217,305.51 × 85,845.80
  4. Step 4: Simplify right side
    157,466.41x = 18,654,765,350.36
  5. Step 5: Solve for x
    x = 18,654,765,350.36/157,466.41
  6. Step 6: Final answer
    x = 118,468.22

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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.