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Finding the Fourth Proportional to 176,208.72, 243,057.44 and 104,538

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Solution

The fourth proportional to 176,208.72, 243,057.44 and 104,538 is: 144,196.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,208.72 : 243,057.44 = 104,538 : x
  2. Step 2: Convert to fraction form
    176,208.72/243,057.44 = 104,538/x
  3. Step 3: Cross multiply
    176,208.72x = 243,057.44 × 104,538
  4. Step 4: Simplify right side
    176,208.72x = 25,408,738,140.03
  5. Step 5: Solve for x
    x = 25,408,738,140.03/176,208.72
  6. Step 6: Final answer
    x = 144,196.83

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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.