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Finding the Fourth Proportional to 71,764,608.40, 107,646,912.60 and 71,764,608.40

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Solution

The fourth proportional to 71,764,608.40, 107,646,912.60 and 71,764,608.40 is: 107,646,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,764,608.40 : 107,646,912.60 = 71,764,608.40 : x
  2. Step 2: Convert to fraction form
    71,764,608.40/107,646,912.60 = 71,764,608.40/x
  3. Step 3: Cross multiply
    71,764,608.40x = 107,646,912.60 × 71,764,608.40
  4. Step 4: Simplify right side
    71,764,608.40x = 7,725,238,528,208,026
  5. Step 5: Solve for x
    x = 7,725,238,528,208,026/71,764,608.40
  6. Step 6: Final answer
    x = 107,646,912.60

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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.