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Finding the Fourth Proportional to 104,557.42, 156,747.97 and 45,348.51

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Solution

The fourth proportional to 104,557.42, 156,747.97 and 45,348.51 is: 67,984.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,557.42 : 156,747.97 = 45,348.51 : x
  2. Step 2: Convert to fraction form
    104,557.42/156,747.97 = 45,348.51/x
  3. Step 3: Cross multiply
    104,557.42x = 156,747.97 × 45,348.51
  4. Step 4: Simplify right side
    104,557.42x = 7,108,286,885.02
  5. Step 5: Solve for x
    x = 7,108,286,885.02/104,557.42
  6. Step 6: Final answer
    x = 67,984.53

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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.