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Finding the Fourth Proportional to 253,611.02, 349,993.76 and 140,433.77

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Solution

The fourth proportional to 253,611.02, 349,993.76 and 140,433.77 is: 193,804.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,611.02 : 349,993.76 = 140,433.77 : x
  2. Step 2: Convert to fraction form
    253,611.02/349,993.76 = 140,433.77/x
  3. Step 3: Cross multiply
    253,611.02x = 349,993.76 × 140,433.77
  4. Step 4: Simplify right side
    253,611.02x = 49,150,940,741.14
  5. Step 5: Solve for x
    x = 49,150,940,741.14/253,611.02
  6. Step 6: Final answer
    x = 193,804.44

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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.