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Finding the Fourth Proportional to 247,611.60, 341,690.40 and 145,648.80

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Solution

The fourth proportional to 247,611.60, 341,690.40 and 145,648.80 is: 200,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,611.60 : 341,690.40 = 145,648.80 : x
  2. Step 2: Convert to fraction form
    247,611.60/341,690.40 = 145,648.80/x
  3. Step 3: Cross multiply
    247,611.60x = 341,690.40 × 145,648.80
  4. Step 4: Simplify right side
    247,611.60x = 49,766,796,731.52
  5. Step 5: Solve for x
    x = 49,766,796,731.52/247,611.60
  6. Step 6: Final answer
    x = 200,987.34

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1.5x scale

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.