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Finding the Fourth Proportional to 127,744.77, 191,646.83 and 43,505.66

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Solution

The fourth proportional to 127,744.77, 191,646.83 and 43,505.66 is: 65,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,744.77 : 191,646.83 = 43,505.66 : x
  2. Step 2: Convert to fraction form
    127,744.77/191,646.83 = 43,505.66/x
  3. Step 3: Cross multiply
    127,744.77x = 191,646.83 × 43,505.66
  4. Step 4: Simplify right side
    127,744.77x = 8,337,721,826.06
  5. Step 5: Solve for x
    x = 8,337,721,826.06/127,744.77
  6. Step 6: Final answer
    x = 65,268.60

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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.