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Finding the Fourth Proportional to 218,160.90, 327,015.59 and 83,188.63

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Solution

The fourth proportional to 218,160.90, 327,015.59 and 83,188.63 is: 124,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,160.90 : 327,015.59 = 83,188.63 : x
  2. Step 2: Convert to fraction form
    218,160.90/327,015.59 = 83,188.63/x
  3. Step 3: Cross multiply
    218,160.90x = 327,015.59 × 83,188.63
  4. Step 4: Simplify right side
    218,160.90x = 27,203,978,920.74
  5. Step 5: Solve for x
    x = 27,203,978,920.74/218,160.90
  6. Step 6: Final answer
    x = 124,696.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.