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Finding the Fourth Proportional to 208,600.44, 287,874.39 and 117,970.02

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Solution

The fourth proportional to 208,600.44, 287,874.39 and 117,970.02 is: 162,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,600.44 : 287,874.39 = 117,970.02 : x
  2. Step 2: Convert to fraction form
    208,600.44/287,874.39 = 117,970.02/x
  3. Step 3: Cross multiply
    208,600.44x = 287,874.39 × 117,970.02
  4. Step 4: Simplify right side
    208,600.44x = 33,960,547,545.79
  5. Step 5: Solve for x
    x = 33,960,547,545.79/208,600.44
  6. Step 6: Final answer
    x = 162,801.90

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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.