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Finding the Fourth Proportional to 207,255.80, 310,365.30 and 165,783.80

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Solution

The fourth proportional to 207,255.80, 310,365.30 and 165,783.80 is: 248,261.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,255.80 : 310,365.30 = 165,783.80 : x
  2. Step 2: Convert to fraction form
    207,255.80/310,365.30 = 165,783.80/x
  3. Step 3: Cross multiply
    207,255.80x = 310,365.30 × 165,783.80
  4. Step 4: Simplify right side
    207,255.80x = 51,453,538,822.14
  5. Step 5: Solve for x
    x = 51,453,538,822.14/207,255.80
  6. Step 6: Final answer
    x = 248,261.03

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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.