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Finding the Fourth Proportional to 200,591.67, 276,846.99 and 128,025.87

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Solution

The fourth proportional to 200,591.67, 276,846.99 and 128,025.87 is: 176,695.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,591.67 : 276,846.99 = 128,025.87 : x
  2. Step 2: Convert to fraction form
    200,591.67/276,846.99 = 128,025.87/x
  3. Step 3: Cross multiply
    200,591.67x = 276,846.99 × 128,025.87
  4. Step 4: Simplify right side
    200,591.67x = 35,443,576,751.63
  5. Step 5: Solve for x
    x = 35,443,576,751.63/200,591.67
  6. Step 6: Final answer
    x = 176,695.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.