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Finding the Fourth Proportional to 307,195.55, 424,111.73 and 273,109.89

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Solution

The fourth proportional to 307,195.55, 424,111.73 and 273,109.89 is: 377,053.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,195.55 : 424,111.73 = 273,109.89 : x
  2. Step 2: Convert to fraction form
    307,195.55/424,111.73 = 273,109.89/x
  3. Step 3: Cross multiply
    307,195.55x = 424,111.73 × 273,109.89
  4. Step 4: Simplify right side
    307,195.55x = 115,829,106,747.72
  5. Step 5: Solve for x
    x = 115,829,106,747.72/307,195.55
  6. Step 6: Final answer
    x = 377,053.34

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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.