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Finding the Fourth Proportional to 147,363.90, 203,362.19 and 80,295.90

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Solution

The fourth proportional to 147,363.90, 203,362.19 and 80,295.90 is: 110,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,363.90 : 203,362.19 = 80,295.90 : x
  2. Step 2: Convert to fraction form
    147,363.90/203,362.19 = 80,295.90/x
  3. Step 3: Cross multiply
    147,363.90x = 203,362.19 × 80,295.90
  4. Step 4: Simplify right side
    147,363.90x = 16,329,149,670.54
  5. Step 5: Solve for x
    x = 16,329,149,670.54/147,363.90
  6. Step 6: Final answer
    x = 110,808.34

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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.