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Finding the Fourth Proportional to 104,125.98, 155,962.17 and 54,055.02

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Solution

The fourth proportional to 104,125.98, 155,962.17 and 54,055.02 is: 80,964.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,125.98 : 155,962.17 = 54,055.02 : x
  2. Step 2: Convert to fraction form
    104,125.98/155,962.17 = 54,055.02/x
  3. Step 3: Cross multiply
    104,125.98x = 155,962.17 × 54,055.02
  4. Step 4: Simplify right side
    104,125.98x = 8,430,538,218.59
  5. Step 5: Solve for x
    x = 8,430,538,218.59/104,125.98
  6. Step 6: Final answer
    x = 80,964.79

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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.