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Finding the Fourth Proportional to 218,089.61, 327,134.42 and 60,318.06

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Solution

The fourth proportional to 218,089.61, 327,134.42 and 60,318.06 is: 90,477.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,089.61 : 327,134.42 = 60,318.06 : x
  2. Step 2: Convert to fraction form
    218,089.61/327,134.42 = 60,318.06/x
  3. Step 3: Cross multiply
    218,089.61x = 327,134.42 × 60,318.06
  4. Step 4: Simplify right side
    218,089.61x = 19,732,113,573.63
  5. Step 5: Solve for x
    x = 19,732,113,573.63/218,089.61
  6. Step 6: Final answer
    x = 90,477.09

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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.