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Finding the Fourth Proportional to 119,491.69, 164,898.49 and 65,776.44

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Solution

The fourth proportional to 119,491.69, 164,898.49 and 65,776.44 is: 90,771.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,491.69 : 164,898.49 = 65,776.44 : x
  2. Step 2: Convert to fraction form
    119,491.69/164,898.49 = 65,776.44/x
  3. Step 3: Cross multiply
    119,491.69x = 164,898.49 × 65,776.44
  4. Step 4: Simplify right side
    119,491.69x = 10,846,435,633.58
  5. Step 5: Solve for x
    x = 10,846,435,633.58/119,491.69
  6. Step 6: Final answer
    x = 90,771.46

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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.