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Finding the Fourth Proportional to 354,751.02, 489,557.79 and 193,609.69

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Solution

The fourth proportional to 354,751.02, 489,557.79 and 193,609.69 is: 267,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,751.02 : 489,557.79 = 193,609.69 : x
  2. Step 2: Convert to fraction form
    354,751.02/489,557.79 = 193,609.69/x
  3. Step 3: Cross multiply
    354,751.02x = 489,557.79 × 193,609.69
  4. Step 4: Simplify right side
    354,751.02x = 94,783,130,735.09
  5. Step 5: Solve for x
    x = 94,783,130,735.09/354,751.02
  6. Step 6: Final answer
    x = 267,182.12

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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.