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Finding the Fourth Proportional to 469,903.45, 704,849.07 and 114,920.55

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Solution

The fourth proportional to 469,903.45, 704,849.07 and 114,920.55 is: 172,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,903.45 : 704,849.07 = 114,920.55 : x
  2. Step 2: Convert to fraction form
    469,903.45/704,849.07 = 114,920.55/x
  3. Step 3: Cross multiply
    469,903.45x = 704,849.07 × 114,920.55
  4. Step 4: Simplify right side
    469,903.45x = 81,001,642,791.39
  5. Step 5: Solve for x
    x = 81,001,642,791.39/469,903.45
  6. Step 6: Final answer
    x = 172,379.33

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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.