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Finding the Fourth Proportional to 364,504.12, 546,752.82 and 115,186.12

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Solution

The fourth proportional to 364,504.12, 546,752.82 and 115,186.12 is: 172,778.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,504.12 : 546,752.82 = 115,186.12 : x
  2. Step 2: Convert to fraction form
    364,504.12/546,752.82 = 115,186.12/x
  3. Step 3: Cross multiply
    364,504.12x = 546,752.82 × 115,186.12
  4. Step 4: Simplify right side
    364,504.12x = 62,978,335,934.86
  5. Step 5: Solve for x
    x = 62,978,335,934.86/364,504.12
  6. Step 6: Final answer
    x = 172,778.12

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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.