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Finding the Fourth Proportional to 119,287.23, 164,618.42 and 65,574.51

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Solution

The fourth proportional to 119,287.23, 164,618.42 and 65,574.51 is: 90,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,287.23 : 164,618.42 = 65,574.51 : x
  2. Step 2: Convert to fraction form
    119,287.23/164,618.42 = 65,574.51/x
  3. Step 3: Cross multiply
    119,287.23x = 164,618.42 × 65,574.51
  4. Step 4: Simplify right side
    119,287.23x = 10,794,771,816.93
  5. Step 5: Solve for x
    x = 10,794,771,816.93/119,287.23
  6. Step 6: Final answer
    x = 90,493.95

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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.