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Finding the Fourth Proportional to 121,168.50, 181,738.84 and 32,428.93

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Solution

The fourth proportional to 121,168.50, 181,738.84 and 32,428.93 is: 48,639.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,168.50 : 181,738.84 = 32,428.93 : x
  2. Step 2: Convert to fraction form
    121,168.50/181,738.84 = 32,428.93/x
  3. Step 3: Cross multiply
    121,168.50x = 181,738.84 × 32,428.93
  4. Step 4: Simplify right side
    121,168.50x = 5,893,595,049.80
  5. Step 5: Solve for x
    x = 5,893,595,049.80/121,168.50
  6. Step 6: Final answer
    x = 48,639.67

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1.5x scale

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.