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Finding the Fourth Proportional to 223,674.25, 308,568.76 and 132,978.75

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Solution

The fourth proportional to 223,674.25, 308,568.76 and 132,978.75 is: 183,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,674.25 : 308,568.76 = 132,978.75 : x
  2. Step 2: Convert to fraction form
    223,674.25/308,568.76 = 132,978.75/x
  3. Step 3: Cross multiply
    223,674.25x = 308,568.76 × 132,978.75
  4. Step 4: Simplify right side
    223,674.25x = 41,033,088,100.38
  5. Step 5: Solve for x
    x = 41,033,088,100.38/223,674.25
  6. Step 6: Final answer
    x = 183,450.21

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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.