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Finding the Fourth Proportional to 257,762.87, 386,678.20 and 95,634.83

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Solution

The fourth proportional to 257,762.87, 386,678.20 and 95,634.83 is: 143,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,762.87 : 386,678.20 = 95,634.83 : x
  2. Step 2: Convert to fraction form
    257,762.87/386,678.20 = 95,634.83/x
  3. Step 3: Cross multiply
    257,762.87x = 386,678.20 × 95,634.83
  4. Step 4: Simplify right side
    257,762.87x = 36,979,905,335.86
  5. Step 5: Solve for x
    x = 36,979,905,335.86/257,762.87
  6. Step 6: Final answer
    x = 143,464.83

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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.