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Finding the Fourth Proportional to 120,049.80, 180,083.94 and 35,803.54

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Solution

The fourth proportional to 120,049.80, 180,083.94 and 35,803.54 is: 53,708.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,049.80 : 180,083.94 = 35,803.54 : x
  2. Step 2: Convert to fraction form
    120,049.80/180,083.94 = 35,803.54/x
  3. Step 3: Cross multiply
    120,049.80x = 180,083.94 × 35,803.54
  4. Step 4: Simplify right side
    120,049.80x = 6,447,642,549.15
  5. Step 5: Solve for x
    x = 6,447,642,549.15/120,049.80
  6. Step 6: Final answer
    x = 53,708.07

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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.