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Finding the Fourth Proportional to 77,900.40, 116,834.40 and 33,528.60

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Solution

The fourth proportional to 77,900.40, 116,834.40 and 33,528.60 is: 50,285.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,900.40 : 116,834.40 = 33,528.60 : x
  2. Step 2: Convert to fraction form
    77,900.40/116,834.40 = 33,528.60/x
  3. Step 3: Cross multiply
    77,900.40x = 116,834.40 × 33,528.60
  4. Step 4: Simplify right side
    77,900.40x = 3,917,293,863.84
  5. Step 5: Solve for x
    x = 3,917,293,863.84/77,900.40
  6. Step 6: Final answer
    x = 50,285.93

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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.