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Finding the Fourth Proportional to 169,468.40, 254,494.20 and 90,736.40

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Solution

The fourth proportional to 169,468.40, 254,494.20 and 90,736.40 is: 136,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,468.40 : 254,494.20 = 90,736.40 : x
  2. Step 2: Convert to fraction form
    169,468.40/254,494.20 = 90,736.40/x
  3. Step 3: Cross multiply
    169,468.40x = 254,494.20 × 90,736.40
  4. Step 4: Simplify right side
    169,468.40x = 23,091,887,528.88
  5. Step 5: Solve for x
    x = 23,091,887,528.88/169,468.40
  6. Step 6: Final answer
    x = 136,260.73

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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.