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Finding the Fourth Proportional to 183,419.97, 275,552.16 and 129,509.20

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Solution

The fourth proportional to 183,419.97, 275,552.16 and 129,509.20 is: 194,561.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,419.97 : 275,552.16 = 129,509.20 : x
  2. Step 2: Convert to fraction form
    183,419.97/275,552.16 = 129,509.20/x
  3. Step 3: Cross multiply
    183,419.97x = 275,552.16 × 129,509.20
  4. Step 4: Simplify right side
    183,419.97x = 35,686,539,799.87
  5. Step 5: Solve for x
    x = 35,686,539,799.87/183,419.97
  6. Step 6: Final answer
    x = 194,561.91

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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.