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Finding the Fourth Proportional to 162,696.19, 244,202.10 and 78,515.60

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Solution

The fourth proportional to 162,696.19, 244,202.10 and 78,515.60 is: 117,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,696.19 : 244,202.10 = 78,515.60 : x
  2. Step 2: Convert to fraction form
    162,696.19/244,202.10 = 78,515.60/x
  3. Step 3: Cross multiply
    162,696.19x = 244,202.10 × 78,515.60
  4. Step 4: Simplify right side
    162,696.19x = 19,173,673,181.75
  5. Step 5: Solve for x
    x = 19,173,673,181.75/162,696.19
  6. Step 6: Final answer
    x = 117,849.55

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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.