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Finding the Third Proportional to 74,388 and 104,284

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Solution

The third proportional to 74,388 and 104,284 is: 146,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,388 : 104,284 = 104,284 : x
  2. Step 2: Convert to fraction form
    74,388/104,284 = 104,284/x
  3. Step 3: Cross multiply
    74,388x = 104,284 × 104,284
  4. Step 4: Simplify right side
    74,388x = 10,875,152,656
  5. Step 5: Solve for x
    x = 10,875,152,656/74,388
  6. Step 6: Final answer
    x = 146,194.99

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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.