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Finding the Fourth Proportional to 181,918.80, 255,211.20 and 181,918.80

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Solution

The fourth proportional to 181,918.80, 255,211.20 and 181,918.80 is: 255,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,918.80 : 255,211.20 = 181,918.80 : x
  2. Step 2: Convert to fraction form
    181,918.80/255,211.20 = 181,918.80/x
  3. Step 3: Cross multiply
    181,918.80x = 255,211.20 × 181,918.80
  4. Step 4: Simplify right side
    181,918.80x = 46,427,715,250.56
  5. Step 5: Solve for x
    x = 46,427,715,250.56/181,918.80
  6. Step 6: Final answer
    x = 255,211.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.