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Finding the Fourth Proportional to 248,267.64, 342,608.40 and 140,858.40

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Solution

The fourth proportional to 248,267.64, 342,608.40 and 140,858.40 is: 194,384.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,267.64 : 342,608.40 = 140,858.40 : x
  2. Step 2: Convert to fraction form
    248,267.64/342,608.40 = 140,858.40/x
  3. Step 3: Cross multiply
    248,267.64x = 342,608.40 × 140,858.40
  4. Step 4: Simplify right side
    248,267.64x = 48,259,271,050.56
  5. Step 5: Solve for x
    x = 48,259,271,050.56/248,267.64
  6. Step 6: Final answer
    x = 194,384.06

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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.