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Finding the Fourth Proportional to 303,916.80, 455,918.40 and 93,571.84

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Solution

The fourth proportional to 303,916.80, 455,918.40 and 93,571.84 is: 140,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,916.80 : 455,918.40 = 93,571.84 : x
  2. Step 2: Convert to fraction form
    303,916.80/455,918.40 = 93,571.84/x
  3. Step 3: Cross multiply
    303,916.80x = 455,918.40 × 93,571.84
  4. Step 4: Simplify right side
    303,916.80x = 42,661,123,577.86
  5. Step 5: Solve for x
    x = 42,661,123,577.86/303,916.80
  6. Step 6: Final answer
    x = 140,371.06

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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.