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Finding the Fourth Proportional to 79,291.90, 118,958.10 and 55,963.90

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Solution

The fourth proportional to 79,291.90, 118,958.10 and 55,963.90 is: 83,960.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,291.90 : 118,958.10 = 55,963.90 : x
  2. Step 2: Convert to fraction form
    79,291.90/118,958.10 = 55,963.90/x
  3. Step 3: Cross multiply
    79,291.90x = 118,958.10 × 55,963.90
  4. Step 4: Simplify right side
    79,291.90x = 6,657,359,212.59
  5. Step 5: Solve for x
    x = 6,657,359,212.59/79,291.90
  6. Step 6: Final answer
    x = 83,960.14

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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.