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Finding the Fourth Proportional to 171,160.76, 256,666.24 and 81,229.25

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Solution

The fourth proportional to 171,160.76, 256,666.24 and 81,229.25 is: 121,808.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,160.76 : 256,666.24 = 81,229.25 : x
  2. Step 2: Convert to fraction form
    171,160.76/256,666.24 = 81,229.25/x
  3. Step 3: Cross multiply
    171,160.76x = 256,666.24 × 81,229.25
  4. Step 4: Simplify right side
    171,160.76x = 20,848,804,892.19
  5. Step 5: Solve for x
    x = 20,848,804,892.19/171,160.76
  6. Step 6: Final answer
    x = 121,808.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.