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Finding the Fourth Proportional to 101,869.80, 152,804.70 and 73,876.20

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Solution

The fourth proportional to 101,869.80, 152,804.70 and 73,876.20 is: 110,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,869.80 : 152,804.70 = 73,876.20 : x
  2. Step 2: Convert to fraction form
    101,869.80/152,804.70 = 73,876.20/x
  3. Step 3: Cross multiply
    101,869.80x = 152,804.70 × 73,876.20
  4. Step 4: Simplify right side
    101,869.80x = 11,288,630,578.14
  5. Step 5: Solve for x
    x = 11,288,630,578.14/101,869.80
  6. Step 6: Final answer
    x = 110,814.30

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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.