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Finding the Fourth Proportional to 183,721.68, 275,145.12 and 127,617.84

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Solution

The fourth proportional to 183,721.68, 275,145.12 and 127,617.84 is: 191,122.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,721.68 : 275,145.12 = 127,617.84 : x
  2. Step 2: Convert to fraction form
    183,721.68/275,145.12 = 127,617.84/x
  3. Step 3: Cross multiply
    183,721.68x = 275,145.12 × 127,617.84
  4. Step 4: Simplify right side
    183,721.68x = 35,113,425,900.94
  5. Step 5: Solve for x
    x = 35,113,425,900.94/183,721.68
  6. Step 6: Final answer
    x = 191,122.93

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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.