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Finding the Fourth Proportional to 119,480.49, 164,887.47 and 65,767.77

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Solution

The fourth proportional to 119,480.49, 164,887.47 and 65,767.77 is: 90,761.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,480.49 : 164,887.47 = 65,767.77 : x
  2. Step 2: Convert to fraction form
    119,480.49/164,887.47 = 65,767.77/x
  3. Step 3: Cross multiply
    119,480.49x = 164,887.47 × 65,767.77
  4. Step 4: Simplify right side
    119,480.49x = 10,844,281,202.84
  5. Step 5: Solve for x
    x = 10,844,281,202.84/119,480.49
  6. Step 6: Final answer
    x = 90,761.94

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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.