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Finding the Fourth Proportional to 189,553.89, 261,580.86 and 104,669.13

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Solution

The fourth proportional to 189,553.89, 261,580.86 and 104,669.13 is: 144,441.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,553.89 : 261,580.86 = 104,669.13 : x
  2. Step 2: Convert to fraction form
    189,553.89/261,580.86 = 104,669.13/x
  3. Step 3: Cross multiply
    189,553.89x = 261,580.86 × 104,669.13
  4. Step 4: Simplify right side
    189,553.89x = 27,379,441,040.85
  5. Step 5: Solve for x
    x = 27,379,441,040.85/189,553.89
  6. Step 6: Final answer
    x = 144,441.46

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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.