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Finding the Fourth Proportional to 197,379.80, 296,069.70 and 144,891.80

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Solution

The fourth proportional to 197,379.80, 296,069.70 and 144,891.80 is: 217,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,379.80 : 296,069.70 = 144,891.80 : x
  2. Step 2: Convert to fraction form
    197,379.80/296,069.70 = 144,891.80/x
  3. Step 3: Cross multiply
    197,379.80x = 296,069.70 × 144,891.80
  4. Step 4: Simplify right side
    197,379.80x = 42,898,071,758.46
  5. Step 5: Solve for x
    x = 42,898,071,758.46/197,379.80
  6. Step 6: Final answer
    x = 217,337.70

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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.