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Finding the Fourth Proportional to 263,498.96, 395,243.04 and 105,762.80

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Solution

The fourth proportional to 263,498.96, 395,243.04 and 105,762.80 is: 158,642.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,498.96 : 395,243.04 = 105,762.80 : x
  2. Step 2: Convert to fraction form
    263,498.96/395,243.04 = 105,762.80/x
  3. Step 3: Cross multiply
    263,498.96x = 395,243.04 × 105,762.80
  4. Step 4: Simplify right side
    263,498.96x = 41,802,010,590.91
  5. Step 5: Solve for x
    x = 41,802,010,590.91/263,498.96
  6. Step 6: Final answer
    x = 158,642.03

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1.5x scale

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.