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Finding the Fourth Proportional to 170,728.20, 256,092.30 and 161,051.40

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Solution

The fourth proportional to 170,728.20, 256,092.30 and 161,051.40 is: 241,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,728.20 : 256,092.30 = 161,051.40 : x
  2. Step 2: Convert to fraction form
    170,728.20/256,092.30 = 161,051.40/x
  3. Step 3: Cross multiply
    170,728.20x = 256,092.30 × 161,051.40
  4. Step 4: Simplify right side
    170,728.20x = 41,244,023,444.22
  5. Step 5: Solve for x
    x = 41,244,023,444.22/170,728.20
  6. Step 6: Final answer
    x = 241,577.10

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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.