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Finding the Fourth Proportional to 303,658.93, 455,764.80 and 161,623.45

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Solution

The fourth proportional to 303,658.93, 455,764.80 and 161,623.45 is: 242,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,658.93 : 455,764.80 = 161,623.45 : x
  2. Step 2: Convert to fraction form
    303,658.93/455,764.80 = 161,623.45/x
  3. Step 3: Cross multiply
    303,658.93x = 455,764.80 × 161,623.45
  4. Step 4: Simplify right side
    303,658.93x = 73,662,279,364.56
  5. Step 5: Solve for x
    x = 73,662,279,364.56/303,658.93
  6. Step 6: Final answer
    x = 242,582.29

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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.