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Finding the Fourth Proportional to 307,658,745.55, 461,489,301.61 and 74,489,069.08

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Solution

The fourth proportional to 307,658,745.55, 461,489,301.61 and 74,489,069.08 is: 111,733,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,658,745.55 : 461,489,301.61 = 74,489,069.08 : x
  2. Step 2: Convert to fraction form
    307,658,745.55/461,489,301.61 = 74,489,069.08/x
  3. Step 3: Cross multiply
    307,658,745.55x = 461,489,301.61 × 74,489,069.08
  4. Step 4: Simplify right side
    307,658,745.55x = 34,375,908,467,308,244
  5. Step 5: Solve for x
    x = 34,375,908,467,308,244/307,658,745.55
  6. Step 6: Final answer
    x = 111,733,890.11

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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.