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Finding the Fourth Proportional to 328,658.81, 453,549.20 and 177,755.81

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Solution

The fourth proportional to 328,658.81, 453,549.20 and 177,755.81 is: 245,303.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,658.81 : 453,549.20 = 177,755.81 : x
  2. Step 2: Convert to fraction form
    328,658.81/453,549.20 = 177,755.81/x
  3. Step 3: Cross multiply
    328,658.81x = 453,549.20 × 177,755.81
  4. Step 4: Simplify right side
    328,658.81x = 80,621,005,665.95
  5. Step 5: Solve for x
    x = 80,621,005,665.95/328,658.81
  6. Step 6: Final answer
    x = 245,303.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.