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Finding the Fourth Proportional to 71,563.60, 107,457.72 and 60,613.84

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Solution

The fourth proportional to 71,563.60, 107,457.72 and 60,613.84 is: 91,015.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,563.60 : 107,457.72 = 60,613.84 : x
  2. Step 2: Convert to fraction form
    71,563.60/107,457.72 = 60,613.84/x
  3. Step 3: Cross multiply
    71,563.60x = 107,457.72 × 60,613.84
  4. Step 4: Simplify right side
    71,563.60x = 6,513,425,046.84
  5. Step 5: Solve for x
    x = 6,513,425,046.84/71,563.60
  6. Step 6: Final answer
    x = 91,015.89

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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.