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Finding the Fourth Proportional to 298,091.76, 447,137.58 and 173,345.28

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Solution

The fourth proportional to 298,091.76, 447,137.58 and 173,345.28 is: 260,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,091.76 : 447,137.58 = 173,345.28 : x
  2. Step 2: Convert to fraction form
    298,091.76/447,137.58 = 173,345.28/x
  3. Step 3: Cross multiply
    298,091.76x = 447,137.58 × 173,345.28
  4. Step 4: Simplify right side
    298,091.76x = 77,509,189,003.62
  5. Step 5: Solve for x
    x = 77,509,189,003.62/298,091.76
  6. Step 6: Final answer
    x = 260,017.89

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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.