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Finding the Fourth Proportional to 321,597.15, 443,792.82 and 178,370.52

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Solution

The fourth proportional to 321,597.15, 443,792.82 and 178,370.52 is: 246,145.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,597.15 : 443,792.82 = 178,370.52 : x
  2. Step 2: Convert to fraction form
    321,597.15/443,792.82 = 178,370.52/x
  3. Step 3: Cross multiply
    321,597.15x = 443,792.82 × 178,370.52
  4. Step 4: Simplify right side
    321,597.15x = 79,159,556,075.67
  5. Step 5: Solve for x
    x = 79,159,556,075.67/321,597.15
  6. Step 6: Final answer
    x = 246,145.08

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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.