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Finding the Fourth Proportional to 119,485.35, 164,888.54 and 65,769.22

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Solution

The fourth proportional to 119,485.35, 164,888.54 and 65,769.22 is: 90,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,485.35 : 164,888.54 = 65,769.22 : x
  2. Step 2: Convert to fraction form
    119,485.35/164,888.54 = 65,769.22/x
  3. Step 3: Cross multiply
    119,485.35x = 164,888.54 × 65,769.22
  4. Step 4: Simplify right side
    119,485.35x = 10,844,590,662.74
  5. Step 5: Solve for x
    x = 10,844,590,662.74/119,485.35
  6. Step 6: Final answer
    x = 90,760.84

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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.