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Finding the Fourth Proportional to 198,394.83, 295,700.60 and 187,186.59

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Solution

The fourth proportional to 198,394.83, 295,700.60 and 187,186.59 is: 278,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,394.83 : 295,700.60 = 187,186.59 : x
  2. Step 2: Convert to fraction form
    198,394.83/295,700.60 = 187,186.59/x
  3. Step 3: Cross multiply
    198,394.83x = 295,700.60 × 187,186.59
  4. Step 4: Simplify right side
    198,394.83x = 55,351,186,039.02
  5. Step 5: Solve for x
    x = 55,351,186,039.02/198,394.83
  6. Step 6: Final answer
    x = 278,995.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.