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Finding the Fourth Proportional to 311,725.63, 467,443.13 and 161,925.71

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Solution

The fourth proportional to 311,725.63, 467,443.13 and 161,925.71 is: 242,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,725.63 : 467,443.13 = 161,925.71 : x
  2. Step 2: Convert to fraction form
    311,725.63/467,443.13 = 161,925.71/x
  3. Step 3: Cross multiply
    311,725.63x = 467,443.13 × 161,925.71
  4. Step 4: Simplify right side
    311,725.63x = 75,691,060,709.87
  5. Step 5: Solve for x
    x = 75,691,060,709.87/311,725.63
  6. Step 6: Final answer
    x = 242,813.08

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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.