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Finding the Fourth Proportional to 183,708.75, 275,580.54 and 71,397.63

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Solution

The fourth proportional to 183,708.75, 275,580.54 and 71,397.63 is: 107,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,708.75 : 275,580.54 = 71,397.63 : x
  2. Step 2: Convert to fraction form
    183,708.75/275,580.54 = 71,397.63/x
  3. Step 3: Cross multiply
    183,708.75x = 275,580.54 × 71,397.63
  4. Step 4: Simplify right side
    183,708.75x = 19,675,797,430.12
  5. Step 5: Solve for x
    x = 19,675,797,430.12/183,708.75
  6. Step 6: Final answer
    x = 107,103.21

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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.