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Finding the Fourth Proportional to 171,091.80, 256,637.70 and 164,093.40

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Solution

The fourth proportional to 171,091.80, 256,637.70 and 164,093.40 is: 246,140.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,091.80 : 256,637.70 = 164,093.40 : x
  2. Step 2: Convert to fraction form
    171,091.80/256,637.70 = 164,093.40/x
  3. Step 3: Cross multiply
    171,091.80x = 256,637.70 × 164,093.40
  4. Step 4: Simplify right side
    171,091.80x = 42,112,552,761.18
  5. Step 5: Solve for x
    x = 42,112,552,761.18/171,091.80
  6. Step 6: Final answer
    x = 246,140.10

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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.