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Finding the Fourth Proportional to 86,297,266.60, 129,445,899.90 and 22,471,858.60

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Solution

The fourth proportional to 86,297,266.60, 129,445,899.90 and 22,471,858.60 is: 33,707,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,297,266.60 : 129,445,899.90 = 22,471,858.60 : x
  2. Step 2: Convert to fraction form
    86,297,266.60/129,445,899.90 = 22,471,858.60/x
  3. Step 3: Cross multiply
    86,297,266.60x = 129,445,899.90 × 22,471,858.60
  4. Step 4: Simplify right side
    86,297,266.60x = 2,908,889,958,902,554.50
  5. Step 5: Solve for x
    x = 2,908,889,958,902,554.50/86,297,266.60
  6. Step 6: Final answer
    x = 33,707,787.90

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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.