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Finding the Fourth Proportional to 496,661.40, 744,992.10 and 181,128.60

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Solution

The fourth proportional to 496,661.40, 744,992.10 and 181,128.60 is: 271,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,661.40 : 744,992.10 = 181,128.60 : x
  2. Step 2: Convert to fraction form
    496,661.40/744,992.10 = 181,128.60/x
  3. Step 3: Cross multiply
    496,661.40x = 744,992.10 × 181,128.60
  4. Step 4: Simplify right side
    496,661.40x = 134,939,376,084.06
  5. Step 5: Solve for x
    x = 134,939,376,084.06/496,661.40
  6. Step 6: Final answer
    x = 271,692.90

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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.