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Finding the Fourth Proportional to 286,866.86, 395,959.64 and 191,373.32

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Solution

The fourth proportional to 286,866.86, 395,959.64 and 191,373.32 is: 264,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,866.86 : 395,959.64 = 191,373.32 : x
  2. Step 2: Convert to fraction form
    286,866.86/395,959.64 = 191,373.32/x
  3. Step 3: Cross multiply
    286,866.86x = 395,959.64 × 191,373.32
  4. Step 4: Simplify right side
    286,866.86x = 75,776,107,956.14
  5. Step 5: Solve for x
    x = 75,776,107,956.14/286,866.86
  6. Step 6: Final answer
    x = 264,150.80

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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.