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Finding the Fourth Proportional to 203,440.70, 304,869.45 and 149,713.40

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Solution

The fourth proportional to 203,440.70, 304,869.45 and 149,713.40 is: 224,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,440.70 : 304,869.45 = 149,713.40 : x
  2. Step 2: Convert to fraction form
    203,440.70/304,869.45 = 149,713.40/x
  3. Step 3: Cross multiply
    203,440.70x = 304,869.45 × 149,713.40
  4. Step 4: Simplify right side
    203,440.70x = 45,643,041,915.63
  5. Step 5: Solve for x
    x = 45,643,041,915.63/203,440.70
  6. Step 6: Final answer
    x = 224,355.51

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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.