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Finding the Fourth Proportional to 71,318,810.60, 106,978,215.90 and 17,466,122.60

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Solution

The fourth proportional to 71,318,810.60, 106,978,215.90 and 17,466,122.60 is: 26,199,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318,810.60 : 106,978,215.90 = 17,466,122.60 : x
  2. Step 2: Convert to fraction form
    71,318,810.60/106,978,215.90 = 17,466,122.60/x
  3. Step 3: Cross multiply
    71,318,810.60x = 106,978,215.90 × 17,466,122.60
  4. Step 4: Simplify right side
    71,318,810.60x = 1,868,494,634,438,669.50
  5. Step 5: Solve for x
    x = 1,868,494,634,438,669.50/71,318,810.60
  6. Step 6: Final answer
    x = 26,199,183.90

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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.