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Finding the Fourth Proportional to 188,967.31, 260,774.86 and 104,084.36

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Solution

The fourth proportional to 188,967.31, 260,774.86 and 104,084.36 is: 143,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,967.31 : 260,774.86 = 104,084.36 : x
  2. Step 2: Convert to fraction form
    188,967.31/260,774.86 = 104,084.36/x
  3. Step 3: Cross multiply
    188,967.31x = 260,774.86 × 104,084.36
  4. Step 4: Simplify right side
    188,967.31x = 27,142,584,407.19
  5. Step 5: Solve for x
    x = 27,142,584,407.19/188,967.31
  6. Step 6: Final answer
    x = 143,636.40

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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.