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Finding the Fourth Proportional to 199,266.66, 298,834.99 and 66,111.17

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Solution

The fourth proportional to 199,266.66, 298,834.99 and 66,111.17 is: 99,145.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,266.66 : 298,834.99 = 66,111.17 : x
  2. Step 2: Convert to fraction form
    199,266.66/298,834.99 = 66,111.17/x
  3. Step 3: Cross multiply
    199,266.66x = 298,834.99 × 66,111.17
  4. Step 4: Simplify right side
    199,266.66x = 19,756,329,166.39
  5. Step 5: Solve for x
    x = 19,756,329,166.39/199,266.66
  6. Step 6: Final answer
    x = 99,145.18

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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.