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Finding the Fourth Proportional to 354,673.60, 489,456.60 and 193,533.04

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Solution

The fourth proportional to 354,673.60, 489,456.60 and 193,533.04 is: 267,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,673.60 : 489,456.60 = 193,533.04 : x
  2. Step 2: Convert to fraction form
    354,673.60/489,456.60 = 193,533.04/x
  3. Step 3: Cross multiply
    354,673.60x = 489,456.60 × 193,533.04
  4. Step 4: Simplify right side
    354,673.60x = 94,726,023,746.06
  5. Step 5: Solve for x
    x = 94,726,023,746.06/354,673.60
  6. Step 6: Final answer
    x = 267,079.43

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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.