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Finding the Fourth Proportional to 101,351.22, 152,051.60 and 71,423.83

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Solution

The fourth proportional to 101,351.22, 152,051.60 and 71,423.83 is: 107,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,351.22 : 152,051.60 = 71,423.83 : x
  2. Step 2: Convert to fraction form
    101,351.22/152,051.60 = 71,423.83/x
  3. Step 3: Cross multiply
    101,351.22x = 152,051.60 × 71,423.83
  4. Step 4: Simplify right side
    101,351.22x = 10,860,107,629.63
  5. Step 5: Solve for x
    x = 10,860,107,629.63/101,351.22
  6. Step 6: Final answer
    x = 107,153.20

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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.