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Finding the Fourth Proportional to 79,116.60, 118,640.28 and 23,699.64

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Solution

The fourth proportional to 79,116.60, 118,640.28 and 23,699.64 is: 35,539.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,116.60 : 118,640.28 = 23,699.64 : x
  2. Step 2: Convert to fraction form
    79,116.60/118,640.28 = 23,699.64/x
  3. Step 3: Cross multiply
    79,116.60x = 118,640.28 × 23,699.64
  4. Step 4: Simplify right side
    79,116.60x = 2,811,731,925.50
  5. Step 5: Solve for x
    x = 2,811,731,925.50/79,116.60
  6. Step 6: Final answer
    x = 35,539.09

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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.