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Finding the Fourth Proportional to 74,083,114.70, 111,124,672.05 and 69,926,065.10

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Solution

The fourth proportional to 74,083,114.70, 111,124,672.05 and 69,926,065.10 is: 104,889,097.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,083,114.70 : 111,124,672.05 = 69,926,065.10 : x
  2. Step 2: Convert to fraction form
    74,083,114.70/111,124,672.05 = 69,926,065.10/x
  3. Step 3: Cross multiply
    74,083,114.70x = 111,124,672.05 × 69,926,065.10
  4. Step 4: Simplify right side
    74,083,114.70x = 7,770,511,051,984,450
  5. Step 5: Solve for x
    x = 7,770,511,051,984,450/74,083,114.70
  6. Step 6: Final answer
    x = 104,889,097.65

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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.