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Finding the Fourth Proportional to 453,704.42, 680,556.60 and 138,161.36

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Solution

The fourth proportional to 453,704.42, 680,556.60 and 138,161.36 is: 207,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,704.42 : 680,556.60 = 138,161.36 : x
  2. Step 2: Convert to fraction form
    453,704.42/680,556.60 = 138,161.36/x
  3. Step 3: Cross multiply
    453,704.42x = 680,556.60 × 138,161.36
  4. Step 4: Simplify right side
    453,704.42x = 94,026,625,412.98
  5. Step 5: Solve for x
    x = 94,026,625,412.98/453,704.42
  6. Step 6: Final answer
    x = 207,242.03

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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.