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Finding the Fourth Proportional to 354,963.56, 489,869.56 and 193,833.56

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Solution

The fourth proportional to 354,963.56, 489,869.56 and 193,833.56 is: 267,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,963.56 : 489,869.56 = 193,833.56 : x
  2. Step 2: Convert to fraction form
    354,963.56/489,869.56 = 193,833.56/x
  3. Step 3: Cross multiply
    354,963.56x = 489,869.56 × 193,833.56
  4. Step 4: Simplify right side
    354,963.56x = 94,953,160,750.43
  5. Step 5: Solve for x
    x = 94,953,160,750.43/354,963.56
  6. Step 6: Final answer
    x = 267,501.15

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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.