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Finding the Fourth Proportional to 208,244.70, 287,404.54 and 117,623.93

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Solution

The fourth proportional to 208,244.70, 287,404.54 and 117,623.93 is: 162,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,244.70 : 287,404.54 = 117,623.93 : x
  2. Step 2: Convert to fraction form
    208,244.70/287,404.54 = 117,623.93/x
  3. Step 3: Cross multiply
    208,244.70x = 287,404.54 × 117,623.93
  4. Step 4: Simplify right side
    208,244.70x = 33,805,649,763.56
  5. Step 5: Solve for x
    x = 33,805,649,763.56/208,244.70
  6. Step 6: Final answer
    x = 162,336.18

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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.