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Finding the Fourth Proportional to 112,518.17, 168,783.45 and 33,638.55

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Solution

The fourth proportional to 112,518.17, 168,783.45 and 33,638.55 is: 50,459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,518.17 : 168,783.45 = 33,638.55 : x
  2. Step 2: Convert to fraction form
    112,518.17/168,783.45 = 33,638.55/x
  3. Step 3: Cross multiply
    112,518.17x = 168,783.45 × 33,638.55
  4. Step 4: Simplify right side
    112,518.17x = 5,677,630,522.00
  5. Step 5: Solve for x
    x = 5,677,630,522.00/112,518.17
  6. Step 6: Final answer
    x = 50,459.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.