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Finding the Fourth Proportional to 74,491,913.78, 111,742,593.78 and 23,375,950.10

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Solution

The fourth proportional to 74,491,913.78, 111,742,593.78 and 23,375,950.10 is: 35,065,407.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,491,913.78 : 111,742,593.78 = 23,375,950.10 : x
  2. Step 2: Convert to fraction form
    74,491,913.78/111,742,593.78 = 23,375,950.10/x
  3. Step 3: Cross multiply
    74,491,913.78x = 111,742,593.78 × 23,375,950.10
  4. Step 4: Simplify right side
    74,491,913.78x = 2,612,089,295,687,137.50
  5. Step 5: Solve for x
    x = 2,612,089,295,687,137.50/74,491,913.78
  6. Step 6: Final answer
    x = 35,065,407.28

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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.