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Finding the Fourth Proportional to 119,472.88, 164,883.60 and 65,768.80

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Solution

The fourth proportional to 119,472.88, 164,883.60 and 65,768.80 is: 90,767.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,472.88 : 164,883.60 = 65,768.80 : x
  2. Step 2: Convert to fraction form
    119,472.88/164,883.60 = 65,768.80/x
  3. Step 3: Cross multiply
    119,472.88x = 164,883.60 × 65,768.80
  4. Step 4: Simplify right side
    119,472.88x = 10,844,196,511.68
  5. Step 5: Solve for x
    x = 10,844,196,511.68/119,472.88
  6. Step 6: Final answer
    x = 90,767.01

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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.