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Finding the Fourth Proportional to 248,063.16, 342,298.64 and 140,611.80

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Solution

The fourth proportional to 248,063.16, 342,298.64 and 140,611.80 is: 194,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,063.16 : 342,298.64 = 140,611.80 : x
  2. Step 2: Convert to fraction form
    248,063.16/342,298.64 = 140,611.80/x
  3. Step 3: Cross multiply
    248,063.16x = 342,298.64 × 140,611.80
  4. Step 4: Simplify right side
    248,063.16x = 48,131,227,907.95
  5. Step 5: Solve for x
    x = 48,131,227,907.95/248,063.16
  6. Step 6: Final answer
    x = 194,028.12

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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.