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Finding the Fourth Proportional to 75,053.88, 112,578.66 and 18,893.88

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Solution

The fourth proportional to 75,053.88, 112,578.66 and 18,893.88 is: 28,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,053.88 : 112,578.66 = 18,893.88 : x
  2. Step 2: Convert to fraction form
    75,053.88/112,578.66 = 18,893.88/x
  3. Step 3: Cross multiply
    75,053.88x = 112,578.66 × 18,893.88
  4. Step 4: Simplify right side
    75,053.88x = 2,127,047,692.60
  5. Step 5: Solve for x
    x = 2,127,047,692.60/75,053.88
  6. Step 6: Final answer
    x = 28,340.28

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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.