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Finding the Fourth Proportional to 180,203.52, 248,413.16 and 154,586.46

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Solution

The fourth proportional to 180,203.52, 248,413.16 and 154,586.46 is: 213,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,203.52 : 248,413.16 = 154,586.46 : x
  2. Step 2: Convert to fraction form
    180,203.52/248,413.16 = 154,586.46/x
  3. Step 3: Cross multiply
    180,203.52x = 248,413.16 × 154,586.46
  4. Step 4: Simplify right side
    180,203.52x = 38,401,311,021.81
  5. Step 5: Solve for x
    x = 38,401,311,021.81/180,203.52
  6. Step 6: Final answer
    x = 213,099.67

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1.5x scale

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.