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Finding the Fourth Proportional to 263,952.80, 395,929.20 and 64,271.60

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Solution

The fourth proportional to 263,952.80, 395,929.20 and 64,271.60 is: 96,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,952.80 : 395,929.20 = 64,271.60 : x
  2. Step 2: Convert to fraction form
    263,952.80/395,929.20 = 64,271.60/x
  3. Step 3: Cross multiply
    263,952.80x = 395,929.20 × 64,271.60
  4. Step 4: Simplify right side
    263,952.80x = 25,447,003,170.72
  5. Step 5: Solve for x
    x = 25,447,003,170.72/263,952.80
  6. Step 6: Final answer
    x = 96,407.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.