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Finding the Fourth Proportional to 218,674.53, 328,030.58 and 60,902.97

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Solution

The fourth proportional to 218,674.53, 328,030.58 and 60,902.97 is: 91,359.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,674.53 : 328,030.58 = 60,902.97 : x
  2. Step 2: Convert to fraction form
    218,674.53/328,030.58 = 60,902.97/x
  3. Step 3: Cross multiply
    218,674.53x = 328,030.58 × 60,902.97
  4. Step 4: Simplify right side
    218,674.53x = 19,978,036,268.31
  5. Step 5: Solve for x
    x = 19,978,036,268.31/218,674.53
  6. Step 6: Final answer
    x = 91,359.69

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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.