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Finding the Fourth Proportional to 263,803.68, 395,700 and 64,125.12

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Solution

The fourth proportional to 263,803.68, 395,700 and 64,125.12 is: 96,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,803.68 : 395,700 = 64,125.12 : x
  2. Step 2: Convert to fraction form
    263,803.68/395,700 = 64,125.12/x
  3. Step 3: Cross multiply
    263,803.68x = 395,700 × 64,125.12
  4. Step 4: Simplify right side
    263,803.68x = 25,374,309,984
  5. Step 5: Solve for x
    x = 25,374,309,984/263,803.68
  6. Step 6: Final answer
    x = 96,186.34

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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.