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Finding the Fourth Proportional to 187,800.70, 280,025.84 and 166,936.72

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Solution

The fourth proportional to 187,800.70, 280,025.84 and 166,936.72 is: 248,915.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,800.70 : 280,025.84 = 166,936.72 : x
  2. Step 2: Convert to fraction form
    187,800.70/280,025.84 = 166,936.72/x
  3. Step 3: Cross multiply
    187,800.70x = 280,025.84 × 166,936.72
  4. Step 4: Simplify right side
    187,800.70x = 46,746,595,244.84
  5. Step 5: Solve for x
    x = 46,746,595,244.84/187,800.70
  6. Step 6: Final answer
    x = 248,915.98

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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.