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Finding the Fourth Proportional to 64,558,829.88, 89,089,855.56 and 35,189,908.20

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Solution

The fourth proportional to 64,558,829.88, 89,089,855.56 and 35,189,908.20 is: 48,561,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,558,829.88 : 89,089,855.56 = 35,189,908.20 : x
  2. Step 2: Convert to fraction form
    64,558,829.88/89,089,855.56 = 35,189,908.20/x
  3. Step 3: Cross multiply
    64,558,829.88x = 89,089,855.56 × 35,189,908.20
  4. Step 4: Simplify right side
    64,558,829.88x = 3,135,063,838,707,660
  5. Step 5: Solve for x
    x = 3,135,063,838,707,660/64,558,829.88
  6. Step 6: Final answer
    x = 48,561,348.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.