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Finding the Fourth Proportional to 354,734, 489,543.25 and 193,599.35

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Solution

The fourth proportional to 354,734, 489,543.25 and 193,599.35 is: 267,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,734 : 489,543.25 = 193,599.35 : x
  2. Step 2: Convert to fraction form
    354,734/489,543.25 = 193,599.35/x
  3. Step 3: Cross multiply
    354,734x = 489,543.25 × 193,599.35
  4. Step 4: Simplify right side
    354,734x = 94,775,254,996.89
  5. Step 5: Solve for x
    x = 94,775,254,996.89/354,734
  6. Step 6: Final answer
    x = 267,172.74

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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.