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Finding the Fourth Proportional to 119,491.01, 164,896.32 and 65,774.90

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Solution

The fourth proportional to 119,491.01, 164,896.32 and 65,774.90 is: 90,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,491.01 : 164,896.32 = 65,774.90 : x
  2. Step 2: Convert to fraction form
    119,491.01/164,896.32 = 65,774.90/x
  3. Step 3: Cross multiply
    119,491.01x = 164,896.32 × 65,774.90
  4. Step 4: Simplify right side
    119,491.01x = 10,846,038,958.37
  5. Step 5: Solve for x
    x = 10,846,038,958.37/119,491.01
  6. Step 6: Final answer
    x = 90,768.66

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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.