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Finding the Fourth Proportional to 43,457.60, 61,015.60 and 43,457.60

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Solution

The fourth proportional to 43,457.60, 61,015.60 and 43,457.60 is: 61,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,457.60 : 61,015.60 = 43,457.60 : x
  2. Step 2: Convert to fraction form
    43,457.60/61,015.60 = 43,457.60/x
  3. Step 3: Cross multiply
    43,457.60x = 61,015.60 × 43,457.60
  4. Step 4: Simplify right side
    43,457.60x = 2,651,591,538.56
  5. Step 5: Solve for x
    x = 2,651,591,538.56/43,457.60
  6. Step 6: Final answer
    x = 61,015.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.