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Finding the Fourth Proportional to 147,906.92, 204,111.48 and 80,838.92

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Solution

The fourth proportional to 147,906.92, 204,111.48 and 80,838.92 is: 111,557.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,906.92 : 204,111.48 = 80,838.92 : x
  2. Step 2: Convert to fraction form
    147,906.92/204,111.48 = 80,838.92/x
  3. Step 3: Cross multiply
    147,906.92x = 204,111.48 × 80,838.92
  4. Step 4: Simplify right side
    147,906.92x = 16,500,151,602.80
  5. Step 5: Solve for x
    x = 16,500,151,602.80/147,906.92
  6. Step 6: Final answer
    x = 111,557.67

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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.