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Finding the Fourth Proportional to 109,504.44, 164,256.66 and 42,975.90

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Solution

The fourth proportional to 109,504.44, 164,256.66 and 42,975.90 is: 64,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,504.44 : 164,256.66 = 42,975.90 : x
  2. Step 2: Convert to fraction form
    109,504.44/164,256.66 = 42,975.90/x
  3. Step 3: Cross multiply
    109,504.44x = 164,256.66 × 42,975.90
  4. Step 4: Simplify right side
    109,504.44x = 7,059,077,794.49
  5. Step 5: Solve for x
    x = 7,059,077,794.49/109,504.44
  6. Step 6: Final answer
    x = 64,463.85

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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.