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Finding the Fourth Proportional to 168,817.68, 253,254.68 and 75,319.92

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Solution

The fourth proportional to 168,817.68, 253,254.68 and 75,319.92 is: 112,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,817.68 : 253,254.68 = 75,319.92 : x
  2. Step 2: Convert to fraction form
    168,817.68/253,254.68 = 75,319.92/x
  3. Step 3: Cross multiply
    168,817.68x = 253,254.68 × 75,319.92
  4. Step 4: Simplify right side
    168,817.68x = 19,075,122,237.23
  5. Step 5: Solve for x
    x = 19,075,122,237.23/168,817.68
  6. Step 6: Final answer
    x = 112,992.44

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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.