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Finding the Fourth Proportional to 199,577.70, 299,266.65 and 66,411.54

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Solution

The fourth proportional to 199,577.70, 299,266.65 and 66,411.54 is: 99,584.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,577.70 : 299,266.65 = 66,411.54 : x
  2. Step 2: Convert to fraction form
    199,577.70/299,266.65 = 66,411.54/x
  3. Step 3: Cross multiply
    199,577.70x = 299,266.65 × 66,411.54
  4. Step 4: Simplify right side
    199,577.70x = 19,874,759,097.14
  5. Step 5: Solve for x
    x = 19,874,759,097.14/199,577.70
  6. Step 6: Final answer
    x = 99,584.07

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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.