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Finding the Fourth Proportional to 207,040.40, 310,252.80 and 107,067.20

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Solution

The fourth proportional to 207,040.40, 310,252.80 and 107,067.20 is: 160,441.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,040.40 : 310,252.80 = 107,067.20 : x
  2. Step 2: Convert to fraction form
    207,040.40/310,252.80 = 107,067.20/x
  3. Step 3: Cross multiply
    207,040.40x = 310,252.80 × 107,067.20
  4. Step 4: Simplify right side
    207,040.40x = 33,217,898,588.16
  5. Step 5: Solve for x
    x = 33,217,898,588.16/207,040.40
  6. Step 6: Final answer
    x = 160,441.63

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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.