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Finding the Fourth Proportional to 104,656.40, 156,962.64 and 34,519.28

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Solution

The fourth proportional to 104,656.40, 156,962.64 and 34,519.28 is: 51,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,656.40 : 156,962.64 = 34,519.28 : x
  2. Step 2: Convert to fraction form
    104,656.40/156,962.64 = 34,519.28/x
  3. Step 3: Cross multiply
    104,656.40x = 156,962.64 × 34,519.28
  4. Step 4: Simplify right side
    104,656.40x = 5,418,237,319.70
  5. Step 5: Solve for x
    x = 5,418,237,319.70/104,656.40
  6. Step 6: Final answer
    x = 51,771.68

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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.