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Finding the Fourth Proportional to 127,782.56, 175,959.60 and 124,950.32

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Solution

The fourth proportional to 127,782.56, 175,959.60 and 124,950.32 is: 172,059.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,782.56 : 175,959.60 = 124,950.32 : x
  2. Step 2: Convert to fraction form
    127,782.56/175,959.60 = 124,950.32/x
  3. Step 3: Cross multiply
    127,782.56x = 175,959.60 × 124,950.32
  4. Step 4: Simplify right side
    127,782.56x = 21,986,208,327.07
  5. Step 5: Solve for x
    x = 21,986,208,327.07/127,782.56
  6. Step 6: Final answer
    x = 172,059.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.