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Finding the Fourth Proportional to 119,394.06, 164,762.62 and 65,679.14

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Solution

The fourth proportional to 119,394.06, 164,762.62 and 65,679.14 is: 90,636.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,394.06 : 164,762.62 = 65,679.14 : x
  2. Step 2: Convert to fraction form
    119,394.06/164,762.62 = 65,679.14/x
  3. Step 3: Cross multiply
    119,394.06x = 164,762.62 × 65,679.14
  4. Step 4: Simplify right side
    119,394.06x = 10,821,467,185.75
  5. Step 5: Solve for x
    x = 10,821,467,185.75/119,394.06
  6. Step 6: Final answer
    x = 90,636.56

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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.