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Finding the Fourth Proportional to 207,086.76, 310,630.55 and 57,327.48

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Solution

The fourth proportional to 207,086.76, 310,630.55 and 57,327.48 is: 85,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,086.76 : 310,630.55 = 57,327.48 : x
  2. Step 2: Convert to fraction form
    207,086.76/310,630.55 = 57,327.48/x
  3. Step 3: Cross multiply
    207,086.76x = 310,630.55 × 57,327.48
  4. Step 4: Simplify right side
    207,086.76x = 17,807,666,355.88
  5. Step 5: Solve for x
    x = 17,807,666,355.88/207,086.76
  6. Step 6: Final answer
    x = 85,991.33

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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.