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Finding the Fourth Proportional to 218,021.80, 327,032.70 and 165,533.80

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Solution

The fourth proportional to 218,021.80, 327,032.70 and 165,533.80 is: 248,300.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,021.80 : 327,032.70 = 165,533.80 : x
  2. Step 2: Convert to fraction form
    218,021.80/327,032.70 = 165,533.80/x
  3. Step 3: Cross multiply
    218,021.80x = 327,032.70 × 165,533.80
  4. Step 4: Simplify right side
    218,021.80x = 54,134,965,555.26
  5. Step 5: Solve for x
    x = 54,134,965,555.26/218,021.80
  6. Step 6: Final answer
    x = 248,300.70

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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.