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Finding the Fourth Proportional to 199,328.10, 279,266.70 and 199,328.10

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Solution

The fourth proportional to 199,328.10, 279,266.70 and 199,328.10 is: 279,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,328.10 : 279,266.70 = 199,328.10 : x
  2. Step 2: Convert to fraction form
    199,328.10/279,266.70 = 199,328.10/x
  3. Step 3: Cross multiply
    199,328.10x = 279,266.70 × 199,328.10
  4. Step 4: Simplify right side
    199,328.10x = 55,665,700,704.27
  5. Step 5: Solve for x
    x = 55,665,700,704.27/199,328.10
  6. Step 6: Final answer
    x = 279,266.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.