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Finding the Fourth Proportional to 201,279.22, 301,916.68 and 51,518.32

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Solution

The fourth proportional to 201,279.22, 301,916.68 and 51,518.32 is: 77,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,279.22 : 301,916.68 = 51,518.32 : x
  2. Step 2: Convert to fraction form
    201,279.22/301,916.68 = 51,518.32/x
  3. Step 3: Cross multiply
    201,279.22x = 301,916.68 × 51,518.32
  4. Step 4: Simplify right side
    201,279.22x = 15,554,239,249.99
  5. Step 5: Solve for x
    x = 15,554,239,249.99/201,279.22
  6. Step 6: Final answer
    x = 77,276.93

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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.