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Finding the Fourth Proportional to 189,180.90, 261,071.44 and 104,301

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Solution

The fourth proportional to 189,180.90, 261,071.44 and 104,301 is: 143,936.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,180.90 : 261,071.44 = 104,301 : x
  2. Step 2: Convert to fraction form
    189,180.90/261,071.44 = 104,301/x
  3. Step 3: Cross multiply
    189,180.90x = 261,071.44 × 104,301
  4. Step 4: Simplify right side
    189,180.90x = 27,230,012,263.44
  5. Step 5: Solve for x
    x = 27,230,012,263.44/189,180.90
  6. Step 6: Final answer
    x = 143,936.37

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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.