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Finding the Fourth Proportional to 263,459.61, 395,263.41 and 105,798.78

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Solution

The fourth proportional to 263,459.61, 395,263.41 and 105,798.78 is: 158,727.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,459.61 : 395,263.41 = 105,798.78 : x
  2. Step 2: Convert to fraction form
    263,459.61/395,263.41 = 105,798.78/x
  3. Step 3: Cross multiply
    263,459.61x = 395,263.41 × 105,798.78
  4. Step 4: Simplify right side
    263,459.61x = 41,818,386,556.64
  5. Step 5: Solve for x
    x = 41,818,386,556.64/263,459.61
  6. Step 6: Final answer
    x = 158,727.88

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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.