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Finding the Fourth Proportional to 224,311.73, 309,472.03 and 143,783.66

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Solution

The fourth proportional to 224,311.73, 309,472.03 and 143,783.66 is: 198,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,311.73 : 309,472.03 = 143,783.66 : x
  2. Step 2: Convert to fraction form
    224,311.73/309,472.03 = 143,783.66/x
  3. Step 3: Cross multiply
    224,311.73x = 309,472.03 × 143,783.66
  4. Step 4: Simplify right side
    224,311.73x = 44,497,020,422.11
  5. Step 5: Solve for x
    x = 44,497,020,422.11/224,311.73
  6. Step 6: Final answer
    x = 198,371.35

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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.