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Finding the Fourth Proportional to 297,103.40, 445,712.70 and 149,359.40

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Solution

The fourth proportional to 297,103.40, 445,712.70 and 149,359.40 is: 224,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,103.40 : 445,712.70 = 149,359.40 : x
  2. Step 2: Convert to fraction form
    297,103.40/445,712.70 = 149,359.40/x
  3. Step 3: Cross multiply
    297,103.40x = 445,712.70 × 149,359.40
  4. Step 4: Simplify right side
    297,103.40x = 66,571,381,444.38
  5. Step 5: Solve for x
    x = 66,571,381,444.38/297,103.40
  6. Step 6: Final answer
    x = 224,068.06

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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.