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Finding the Fourth Proportional to 120,053.99, 180,080.96 and 41,168.90

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Solution

The fourth proportional to 120,053.99, 180,080.96 and 41,168.90 is: 61,753.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,053.99 : 180,080.96 = 41,168.90 : x
  2. Step 2: Convert to fraction form
    120,053.99/180,080.96 = 41,168.90/x
  3. Step 3: Cross multiply
    120,053.99x = 180,080.96 × 41,168.90
  4. Step 4: Simplify right side
    120,053.99x = 7,413,733,927.89
  5. Step 5: Solve for x
    x = 7,413,733,927.89/120,053.99
  6. Step 6: Final answer
    x = 61,753.33

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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.