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Finding the Fourth Proportional to 190,564.78, 262,977.61 and 104,522.01

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Solution

The fourth proportional to 190,564.78, 262,977.61 and 104,522.01 is: 144,239.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,564.78 : 262,977.61 = 104,522.01 : x
  2. Step 2: Convert to fraction form
    190,564.78/262,977.61 = 104,522.01/x
  3. Step 3: Cross multiply
    190,564.78x = 262,977.61 × 104,522.01
  4. Step 4: Simplify right side
    190,564.78x = 27,486,948,382.20
  5. Step 5: Solve for x
    x = 27,486,948,382.20/190,564.78
  6. Step 6: Final answer
    x = 144,239.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.