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Finding the Fourth Proportional to 309,357.99, 464,028.48 and 98,992.89

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Solution

The fourth proportional to 309,357.99, 464,028.48 and 98,992.89 is: 148,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,357.99 : 464,028.48 = 98,992.89 : x
  2. Step 2: Convert to fraction form
    309,357.99/464,028.48 = 98,992.89/x
  3. Step 3: Cross multiply
    309,357.99x = 464,028.48 × 98,992.89
  4. Step 4: Simplify right side
    309,357.99x = 45,935,520,277.51
  5. Step 5: Solve for x
    x = 45,935,520,277.51/309,357.99
  6. Step 6: Final answer
    x = 148,486.61

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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.