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Finding the Fourth Proportional to 104,558.80, 156,750.04 and 45,349.88

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Solution

The fourth proportional to 104,558.80, 156,750.04 and 45,349.88 is: 67,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,558.80 : 156,750.04 = 45,349.88 : x
  2. Step 2: Convert to fraction form
    104,558.80/156,750.04 = 45,349.88/x
  3. Step 3: Cross multiply
    104,558.80x = 156,750.04 × 45,349.88
  4. Step 4: Simplify right side
    104,558.80x = 7,108,594,885.37
  5. Step 5: Solve for x
    x = 7,108,594,885.37/104,558.80
  6. Step 6: Final answer
    x = 67,986.58

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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.