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Finding the Fourth Proportional to 104,304.81, 143,887.41 and 65,999.82

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Solution

The fourth proportional to 104,304.81, 143,887.41 and 65,999.82 is: 91,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,304.81 : 143,887.41 = 65,999.82 : x
  2. Step 2: Convert to fraction form
    104,304.81/143,887.41 = 65,999.82/x
  3. Step 3: Cross multiply
    104,304.81x = 143,887.41 × 65,999.82
  4. Step 4: Simplify right side
    104,304.81x = 9,496,543,160.27
  5. Step 5: Solve for x
    x = 9,496,543,160.27/104,304.81
  6. Step 6: Final answer
    x = 91,046.07

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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.