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Finding the Fourth Proportional to 125,783.91, 188,544.62 and 50,955.71

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Solution

The fourth proportional to 125,783.91, 188,544.62 and 50,955.71 is: 76,380.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,783.91 : 188,544.62 = 50,955.71 : x
  2. Step 2: Convert to fraction form
    125,783.91/188,544.62 = 50,955.71/x
  3. Step 3: Cross multiply
    125,783.91x = 188,544.62 × 50,955.71
  4. Step 4: Simplify right side
    125,783.91x = 9,607,423,781.28
  5. Step 5: Solve for x
    x = 9,607,423,781.28/125,783.91
  6. Step 6: Final answer
    x = 76,380.39

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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.