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Finding the Fourth Proportional to 236,805, 355,382.82 and 112,146.36

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Solution

The fourth proportional to 236,805, 355,382.82 and 112,146.36 is: 168,302.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,805 : 355,382.82 = 112,146.36 : x
  2. Step 2: Convert to fraction form
    236,805/355,382.82 = 112,146.36/x
  3. Step 3: Cross multiply
    236,805x = 355,382.82 × 112,146.36
  4. Step 4: Simplify right side
    236,805x = 39,854,889,669.54
  5. Step 5: Solve for x
    x = 39,854,889,669.54/236,805
  6. Step 6: Final answer
    x = 168,302.57

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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.