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Finding the Fourth Proportional to 264,621.20, 395,959.80 and 194,637.20

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Solution

The fourth proportional to 264,621.20, 395,959.80 and 194,637.20 is: 291,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,621.20 : 395,959.80 = 194,637.20 : x
  2. Step 2: Convert to fraction form
    264,621.20/395,959.80 = 194,637.20/x
  3. Step 3: Cross multiply
    264,621.20x = 395,959.80 × 194,637.20
  4. Step 4: Simplify right side
    264,621.20x = 77,068,506,784.56
  5. Step 5: Solve for x
    x = 77,068,506,784.56/264,621.20
  6. Step 6: Final answer
    x = 291,240.86

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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.