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Finding the Fourth Proportional to 119,382.48, 164,751.84 and 65,669.76

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Solution

The fourth proportional to 119,382.48, 164,751.84 and 65,669.76 is: 90,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,382.48 : 164,751.84 = 65,669.76 : x
  2. Step 2: Convert to fraction form
    119,382.48/164,751.84 = 65,669.76/x
  3. Step 3: Cross multiply
    119,382.48x = 164,751.84 × 65,669.76
  4. Step 4: Simplify right side
    119,382.48x = 10,819,213,792.36
  5. Step 5: Solve for x
    x = 10,819,213,792.36/119,382.48
  6. Step 6: Final answer
    x = 90,626.48

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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.