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Finding the Fourth Proportional to 205,860.60, 308,740.86 and 56,101.68

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Solution

The fourth proportional to 205,860.60, 308,740.86 and 56,101.68 is: 84,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,860.60 : 308,740.86 = 56,101.68 : x
  2. Step 2: Convert to fraction form
    205,860.60/308,740.86 = 56,101.68/x
  3. Step 3: Cross multiply
    205,860.60x = 308,740.86 × 56,101.68
  4. Step 4: Simplify right side
    205,860.60x = 17,320,880,930.64
  5. Step 5: Solve for x
    x = 17,320,880,930.64/205,860.60
  6. Step 6: Final answer
    x = 84,138.88

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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.