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Finding the Fourth Proportional to 68,693,539.60, 103,040,309.40 and 41,819,683.60

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Solution

The fourth proportional to 68,693,539.60, 103,040,309.40 and 41,819,683.60 is: 62,729,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,693,539.60 : 103,040,309.40 = 41,819,683.60 : x
  2. Step 2: Convert to fraction form
    68,693,539.60/103,040,309.40 = 41,819,683.60/x
  3. Step 3: Cross multiply
    68,693,539.60x = 103,040,309.40 × 41,819,683.60
  4. Step 4: Simplify right side
    68,693,539.60x = 4,309,113,137,154,106
  5. Step 5: Solve for x
    x = 4,309,113,137,154,106/68,693,539.60
  6. Step 6: Final answer
    x = 62,729,525.40

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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.