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Finding the Fourth Proportional to 207,227.20, 310,840.80 and 57,467.20

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Solution

The fourth proportional to 207,227.20, 310,840.80 and 57,467.20 is: 86,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,227.20 : 310,840.80 = 57,467.20 : x
  2. Step 2: Convert to fraction form
    207,227.20/310,840.80 = 57,467.20/x
  3. Step 3: Cross multiply
    207,227.20x = 310,840.80 × 57,467.20
  4. Step 4: Simplify right side
    207,227.20x = 17,863,150,421.76
  5. Step 5: Solve for x
    x = 17,863,150,421.76/207,227.20
  6. Step 6: Final answer
    x = 86,200.80

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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.