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Finding the Fourth Proportional to 208,588.60, 287,850.53 and 117,962.36

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Solution

The fourth proportional to 208,588.60, 287,850.53 and 117,962.36 is: 162,787.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,588.60 : 287,850.53 = 117,962.36 : x
  2. Step 2: Convert to fraction form
    208,588.60/287,850.53 = 117,962.36/x
  3. Step 3: Cross multiply
    208,588.60x = 287,850.53 × 117,962.36
  4. Step 4: Simplify right side
    208,588.60x = 33,955,527,846.05
  5. Step 5: Solve for x
    x = 33,955,527,846.05/208,588.60
  6. Step 6: Final answer
    x = 162,787.07

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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.