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Finding the Fourth Proportional to 199,037.20, 298,555.80 and 185,915.20

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Solution

The fourth proportional to 199,037.20, 298,555.80 and 185,915.20 is: 278,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,037.20 : 298,555.80 = 185,915.20 : x
  2. Step 2: Convert to fraction form
    199,037.20/298,555.80 = 185,915.20/x
  3. Step 3: Cross multiply
    199,037.20x = 298,555.80 × 185,915.20
  4. Step 4: Simplify right side
    199,037.20x = 55,506,061,268.16
  5. Step 5: Solve for x
    x = 55,506,061,268.16/199,037.20
  6. Step 6: Final answer
    x = 278,872.80

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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.