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Finding the Fourth Proportional to 243,490.40, 364,987.20 and 164,612.60

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Solution

The fourth proportional to 243,490.40, 364,987.20 and 164,612.60 is: 246,750.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,490.40 : 364,987.20 = 164,612.60 : x
  2. Step 2: Convert to fraction form
    243,490.40/364,987.20 = 164,612.60/x
  3. Step 3: Cross multiply
    243,490.40x = 364,987.20 × 164,612.60
  4. Step 4: Simplify right side
    243,490.40x = 60,081,491,958.72
  5. Step 5: Solve for x
    x = 60,081,491,958.72/243,490.40
  6. Step 6: Final answer
    x = 246,750.97

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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.