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Finding the Fourth Proportional to 110,056.72, 165,109.56 and 39,934.48

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Solution

The fourth proportional to 110,056.72, 165,109.56 and 39,934.48 is: 59,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,056.72 : 165,109.56 = 39,934.48 : x
  2. Step 2: Convert to fraction form
    110,056.72/165,109.56 = 39,934.48/x
  3. Step 3: Cross multiply
    110,056.72x = 165,109.56 × 39,934.48
  4. Step 4: Simplify right side
    110,056.72x = 6,593,564,421.63
  5. Step 5: Solve for x
    x = 6,593,564,421.63/110,056.72
  6. Step 6: Final answer
    x = 59,910.60

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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.