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Finding the Fourth Proportional to 218,506.50, 327,759.93 and 124,946.64

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Solution

The fourth proportional to 218,506.50, 327,759.93 and 124,946.64 is: 187,420.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,506.50 : 327,759.93 = 124,946.64 : x
  2. Step 2: Convert to fraction form
    218,506.50/327,759.93 = 124,946.64/x
  3. Step 3: Cross multiply
    218,506.50x = 327,759.93 × 124,946.64
  4. Step 4: Simplify right side
    218,506.50x = 40,952,501,980.14
  5. Step 5: Solve for x
    x = 40,952,501,980.14/218,506.50
  6. Step 6: Final answer
    x = 187,420.06

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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.