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Finding the Fourth Proportional to 303,664.93, 455,773.80 and 161,629.45

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Solution

The fourth proportional to 303,664.93, 455,773.80 and 161,629.45 is: 242,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,664.93 : 455,773.80 = 161,629.45 : x
  2. Step 2: Convert to fraction form
    303,664.93/455,773.80 = 161,629.45/x
  3. Step 3: Cross multiply
    303,664.93x = 455,773.80 × 161,629.45
  4. Step 4: Simplify right side
    303,664.93x = 73,666,468,618.41
  5. Step 5: Solve for x
    x = 73,666,468,618.41/303,664.93
  6. Step 6: Final answer
    x = 242,591.30

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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.