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Finding the Fourth Proportional to 119,381.78, 164,660.54 and 75,759.33

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Solution

The fourth proportional to 119,381.78, 164,660.54 and 75,759.33 is: 104,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,381.78 : 164,660.54 = 75,759.33 : x
  2. Step 2: Convert to fraction form
    119,381.78/164,660.54 = 75,759.33/x
  3. Step 3: Cross multiply
    119,381.78x = 164,660.54 × 75,759.33
  4. Step 4: Simplify right side
    119,381.78x = 12,474,571,809.04
  5. Step 5: Solve for x
    x = 12,474,571,809.04/119,381.78
  6. Step 6: Final answer
    x = 104,493.10

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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.