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Finding the Fourth Proportional to 110,476.80, 165,736.80 and 43,905.60

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Solution

The fourth proportional to 110,476.80, 165,736.80 and 43,905.60 is: 65,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,476.80 : 165,736.80 = 43,905.60 : x
  2. Step 2: Convert to fraction form
    110,476.80/165,736.80 = 43,905.60/x
  3. Step 3: Cross multiply
    110,476.80x = 165,736.80 × 43,905.60
  4. Step 4: Simplify right side
    110,476.80x = 7,276,773,646.08
  5. Step 5: Solve for x
    x = 7,276,773,646.08/110,476.80
  6. Step 6: Final answer
    x = 65,866.98

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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.