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Finding the Fourth Proportional to 98,174, 147,241.56 and 28,040.96

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Solution

The fourth proportional to 98,174, 147,241.56 and 28,040.96 is: 42,055.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,174 : 147,241.56 = 28,040.96 : x
  2. Step 2: Convert to fraction form
    98,174/147,241.56 = 28,040.96/x
  3. Step 3: Cross multiply
    98,174x = 147,241.56 × 28,040.96
  4. Step 4: Simplify right side
    98,174x = 4,128,794,694.30
  5. Step 5: Solve for x
    x = 4,128,794,694.30/98,174
  6. Step 6: Final answer
    x = 42,055.89

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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.