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Finding the Fourth Proportional to 218,429.07, 327,643.74 and 60,657.54

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Solution

The fourth proportional to 218,429.07, 327,643.74 and 60,657.54 is: 90,986.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,429.07 : 327,643.74 = 60,657.54 : x
  2. Step 2: Convert to fraction form
    218,429.07/327,643.74 = 60,657.54/x
  3. Step 3: Cross multiply
    218,429.07x = 327,643.74 × 60,657.54
  4. Step 4: Simplify right side
    218,429.07x = 19,874,063,264.80
  5. Step 5: Solve for x
    x = 19,874,063,264.80/218,429.07
  6. Step 6: Final answer
    x = 90,986.35

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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.