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Finding the Fourth Proportional to 100,740, 151,109.10 and 37,557.98

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Solution

The fourth proportional to 100,740, 151,109.10 and 37,557.98 is: 56,336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,740 : 151,109.10 = 37,557.98 : x
  2. Step 2: Convert to fraction form
    100,740/151,109.10 = 37,557.98/x
  3. Step 3: Cross multiply
    100,740x = 151,109.10 × 37,557.98
  4. Step 4: Simplify right side
    100,740x = 5,675,351,800.07
  5. Step 5: Solve for x
    x = 5,675,351,800.07/100,740
  6. Step 6: Final answer
    x = 56,336.63

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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.