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Finding the Fourth Proportional to 101,074.40, 151,444.74 and 61,511.84

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Solution

The fourth proportional to 101,074.40, 151,444.74 and 61,511.84 is: 92,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,074.40 : 151,444.74 = 61,511.84 : x
  2. Step 2: Convert to fraction form
    101,074.40/151,444.74 = 61,511.84/x
  3. Step 3: Cross multiply
    101,074.40x = 151,444.74 × 61,511.84
  4. Step 4: Simplify right side
    101,074.40x = 9,315,644,615.72
  5. Step 5: Solve for x
    x = 9,315,644,615.72/101,074.40
  6. Step 6: Final answer
    x = 92,166.21

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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.