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Finding the Fourth Proportional to 216,673.19, 324,743.59 and 121,703.73

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Solution

The fourth proportional to 216,673.19, 324,743.59 and 121,703.73 is: 182,406.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,673.19 : 324,743.59 = 121,703.73 : x
  2. Step 2: Convert to fraction form
    216,673.19/324,743.59 = 121,703.73/x
  3. Step 3: Cross multiply
    216,673.19x = 324,743.59 × 121,703.73
  4. Step 4: Simplify right side
    216,673.19x = 39,522,505,892.33
  5. Step 5: Solve for x
    x = 39,522,505,892.33/216,673.19
  6. Step 6: Final answer
    x = 182,406.07

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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.