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Finding the Fourth Proportional to 294.93, 441.99 and 140.76

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Solution

The fourth proportional to 294.93, 441.99 and 140.76 is: 210.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.93 : 441.99 = 140.76 : x
  2. Step 2: Convert to fraction form
    294.93/441.99 = 140.76/x
  3. Step 3: Cross multiply
    294.93x = 441.99 × 140.76
  4. Step 4: Simplify right side
    294.93x = 62,214.51
  5. Step 5: Solve for x
    x = 62,214.51/294.93
  6. Step 6: Final answer
    x = 210.95

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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.