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Finding the Fourth Proportional to 77,504.81, 106,958.59 and 43,515.94

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Solution

The fourth proportional to 77,504.81, 106,958.59 and 43,515.94 is: 60,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,504.81 : 106,958.59 = 43,515.94 : x
  2. Step 2: Convert to fraction form
    77,504.81/106,958.59 = 43,515.94/x
  3. Step 3: Cross multiply
    77,504.81x = 106,958.59 × 43,515.94
  4. Step 4: Simplify right side
    77,504.81x = 4,654,403,654.06
  5. Step 5: Solve for x
    x = 4,654,403,654.06/77,504.81
  6. Step 6: Final answer
    x = 60,053.10

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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.