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Finding the Fourth Proportional to 236,974.77, 355,147.74 and 103,709.93

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Solution

The fourth proportional to 236,974.77, 355,147.74 and 103,709.93 is: 155,427.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,974.77 : 355,147.74 = 103,709.93 : x
  2. Step 2: Convert to fraction form
    236,974.77/355,147.74 = 103,709.93/x
  3. Step 3: Cross multiply
    236,974.77x = 355,147.74 × 103,709.93
  4. Step 4: Simplify right side
    236,974.77x = 36,832,345,479.32
  5. Step 5: Solve for x
    x = 36,832,345,479.32/236,974.77
  6. Step 6: Final answer
    x = 155,427.29

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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.