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Finding the Fourth Proportional to 203,292.44, 280,539.40 and 112,647.60

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Solution

The fourth proportional to 203,292.44, 280,539.40 and 112,647.60 is: 155,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,292.44 : 280,539.40 = 112,647.60 : x
  2. Step 2: Convert to fraction form
    203,292.44/280,539.40 = 112,647.60/x
  3. Step 3: Cross multiply
    203,292.44x = 280,539.40 × 112,647.60
  4. Step 4: Simplify right side
    203,292.44x = 31,602,090,115.44
  5. Step 5: Solve for x
    x = 31,602,090,115.44/203,292.44
  6. Step 6: Final answer
    x = 155,451.38

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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.