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Finding the Fourth Proportional to 201,773,447.70, 302,660,171.55 and 152,987,163.90

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Solution

The fourth proportional to 201,773,447.70, 302,660,171.55 and 152,987,163.90 is: 229,480,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,773,447.70 : 302,660,171.55 = 152,987,163.90 : x
  2. Step 2: Convert to fraction form
    201,773,447.70/302,660,171.55 = 152,987,163.90/x
  3. Step 3: Cross multiply
    201,773,447.70x = 302,660,171.55 × 152,987,163.90
  4. Step 4: Simplify right side
    201,773,447.70x = 46,303,121,270,921,968
  5. Step 5: Solve for x
    x = 46,303,121,270,921,968/201,773,447.70
  6. Step 6: Final answer
    x = 229,480,745.85

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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.