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Finding the Fourth Proportional to 199,649.77, 275,641.02 and 127,093.60

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Solution

The fourth proportional to 199,649.77, 275,641.02 and 127,093.60 is: 175,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,649.77 : 275,641.02 = 127,093.60 : x
  2. Step 2: Convert to fraction form
    199,649.77/275,641.02 = 127,093.60/x
  3. Step 3: Cross multiply
    199,649.77x = 275,641.02 × 127,093.60
  4. Step 4: Simplify right side
    199,649.77x = 35,032,209,539.47
  5. Step 5: Solve for x
    x = 35,032,209,539.47/199,649.77
  6. Step 6: Final answer
    x = 175,468.32

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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.