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Finding the Fourth Proportional to 211,504.20, 316,632.98 and 185,260.20

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Solution

The fourth proportional to 211,504.20, 316,632.98 and 185,260.20 is: 277,344.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,504.20 : 316,632.98 = 185,260.20 : x
  2. Step 2: Convert to fraction form
    211,504.20/316,632.98 = 185,260.20/x
  3. Step 3: Cross multiply
    211,504.20x = 316,632.98 × 185,260.20
  4. Step 4: Simplify right side
    211,504.20x = 58,659,489,201.40
  5. Step 5: Solve for x
    x = 58,659,489,201.40/211,504.20
  6. Step 6: Final answer
    x = 277,344.32

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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.