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Finding the Fourth Proportional to 119,388.54, 164,760.39 and 65,677.62

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Solution

The fourth proportional to 119,388.54, 164,760.39 and 65,677.62 is: 90,637.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,388.54 : 164,760.39 = 65,677.62 : x
  2. Step 2: Convert to fraction form
    119,388.54/164,760.39 = 65,677.62/x
  3. Step 3: Cross multiply
    119,388.54x = 164,760.39 × 65,677.62
  4. Step 4: Simplify right side
    119,388.54x = 10,821,070,285.47
  5. Step 5: Solve for x
    x = 10,821,070,285.47/119,388.54
  6. Step 6: Final answer
    x = 90,637.43

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1.5x scale

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.