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Finding the Fourth Proportional to 183,917.52, 253,820.88 and 103,348.80

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Solution

The fourth proportional to 183,917.52, 253,820.88 and 103,348.80 is: 142,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,917.52 : 253,820.88 = 103,348.80 : x
  2. Step 2: Convert to fraction form
    183,917.52/253,820.88 = 103,348.80/x
  3. Step 3: Cross multiply
    183,917.52x = 253,820.88 × 103,348.80
  4. Step 4: Simplify right side
    183,917.52x = 26,232,083,362.94
  5. Step 5: Solve for x
    x = 26,232,083,362.94/183,917.52
  6. Step 6: Final answer
    x = 142,629.61

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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.