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Finding the Fourth Proportional to 321,051.74, 443,046.93 and 185,085.95

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Solution

The fourth proportional to 321,051.74, 443,046.93 and 185,085.95 is: 255,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,051.74 : 443,046.93 = 185,085.95 : x
  2. Step 2: Convert to fraction form
    321,051.74/443,046.93 = 185,085.95/x
  3. Step 3: Cross multiply
    321,051.74x = 443,046.93 × 185,085.95
  4. Step 4: Simplify right side
    321,051.74x = 82,001,761,933.63
  5. Step 5: Solve for x
    x = 82,001,761,933.63/321,051.74
  6. Step 6: Final answer
    x = 255,416.03

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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.