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Finding the Fourth Proportional to 272,043.30, 408,064.95 and 161,451.30

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Solution

The fourth proportional to 272,043.30, 408,064.95 and 161,451.30 is: 242,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,043.30 : 408,064.95 = 161,451.30 : x
  2. Step 2: Convert to fraction form
    272,043.30/408,064.95 = 161,451.30/x
  3. Step 3: Cross multiply
    272,043.30x = 408,064.95 × 161,451.30
  4. Step 4: Simplify right side
    272,043.30x = 65,882,616,661.94
  5. Step 5: Solve for x
    x = 65,882,616,661.94/272,043.30
  6. Step 6: Final answer
    x = 242,176.95

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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.