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Finding the Fourth Proportional to 476,103.44, 714,151.92 and 121,114.28

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Solution

The fourth proportional to 476,103.44, 714,151.92 and 121,114.28 is: 181,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,103.44 : 714,151.92 = 121,114.28 : x
  2. Step 2: Convert to fraction form
    476,103.44/714,151.92 = 121,114.28/x
  3. Step 3: Cross multiply
    476,103.44x = 714,151.92 × 121,114.28
  4. Step 4: Simplify right side
    476,103.44x = 86,493,995,601.42
  5. Step 5: Solve for x
    x = 86,493,995,601.42/476,103.44
  6. Step 6: Final answer
    x = 181,670.60

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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.