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Finding the Fourth Proportional to 328,959.12, 453,941.48 and 185,725.20

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Solution

The fourth proportional to 328,959.12, 453,941.48 and 185,725.20 is: 256,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,959.12 : 453,941.48 = 185,725.20 : x
  2. Step 2: Convert to fraction form
    328,959.12/453,941.48 = 185,725.20/x
  3. Step 3: Cross multiply
    328,959.12x = 453,941.48 × 185,725.20
  4. Step 4: Simplify right side
    328,959.12x = 84,308,372,161.30
  5. Step 5: Solve for x
    x = 84,308,372,161.30/328,959.12
  6. Step 6: Final answer
    x = 256,288.30

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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.