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Finding the Fourth Proportional to 208,329.94, 287,495.33 and 112,837.33

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Solution

The fourth proportional to 208,329.94, 287,495.33 and 112,837.33 is: 155,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,329.94 : 287,495.33 = 112,837.33 : x
  2. Step 2: Convert to fraction form
    208,329.94/287,495.33 = 112,837.33/x
  3. Step 3: Cross multiply
    208,329.94x = 287,495.33 × 112,837.33
  4. Step 4: Simplify right side
    208,329.94x = 32,440,204,141.74
  5. Step 5: Solve for x
    x = 32,440,204,141.74/208,329.94
  6. Step 6: Final answer
    x = 155,715.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.