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Finding the Fourth Proportional to 328,881.66, 453,858.03 and 177,978.66

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Solution

The fourth proportional to 328,881.66, 453,858.03 and 177,978.66 is: 245,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,881.66 : 453,858.03 = 177,978.66 : x
  2. Step 2: Convert to fraction form
    328,881.66/453,858.03 = 177,978.66/x
  3. Step 3: Cross multiply
    328,881.66x = 453,858.03 × 177,978.66
  4. Step 4: Simplify right side
    328,881.66x = 80,777,044,009.64
  5. Step 5: Solve for x
    x = 80,777,044,009.64/328,881.66
  6. Step 6: Final answer
    x = 245,611.28

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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.