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Finding the Fourth Proportional to 111,625.44, 154,051.68 and 63,893.76

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Solution

The fourth proportional to 111,625.44, 154,051.68 and 63,893.76 is: 88,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,625.44 : 154,051.68 = 63,893.76 : x
  2. Step 2: Convert to fraction form
    111,625.44/154,051.68 = 63,893.76/x
  3. Step 3: Cross multiply
    111,625.44x = 154,051.68 × 63,893.76
  4. Step 4: Simplify right side
    111,625.44x = 9,842,941,069.52
  5. Step 5: Solve for x
    x = 9,842,941,069.52/111,625.44
  6. Step 6: Final answer
    x = 88,178.30

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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.