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Finding the Fourth Proportional to 127,896.88, 191,862.84 and 43,634.44

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Solution

The fourth proportional to 127,896.88, 191,862.84 and 43,634.44 is: 65,457.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,896.88 : 191,862.84 = 43,634.44 : x
  2. Step 2: Convert to fraction form
    127,896.88/191,862.84 = 43,634.44/x
  3. Step 3: Cross multiply
    127,896.88x = 191,862.84 × 43,634.44
  4. Step 4: Simplify right side
    127,896.88x = 8,371,827,580.21
  5. Step 5: Solve for x
    x = 8,371,827,580.21/127,896.88
  6. Step 6: Final answer
    x = 65,457.64

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1.5x scale

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.