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Finding the Fourth Proportional to 371,811.87, 557,754.71 and 119,028.84

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Solution

The fourth proportional to 371,811.87, 557,754.71 and 119,028.84 is: 178,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,811.87 : 557,754.71 = 119,028.84 : x
  2. Step 2: Convert to fraction form
    371,811.87/557,754.71 = 119,028.84/x
  3. Step 3: Cross multiply
    371,811.87x = 557,754.71 × 119,028.84
  4. Step 4: Simplify right side
    371,811.87x = 66,388,897,256.02
  5. Step 5: Solve for x
    x = 66,388,897,256.02/371,811.87
  6. Step 6: Final answer
    x = 178,555.08

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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.