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Finding the Fourth Proportional to 71,195.60, 98,254.56 and 40,984.64

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Solution

The fourth proportional to 71,195.60, 98,254.56 and 40,984.64 is: 56,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,195.60 : 98,254.56 = 40,984.64 : x
  2. Step 2: Convert to fraction form
    71,195.60/98,254.56 = 40,984.64/x
  3. Step 3: Cross multiply
    71,195.60x = 98,254.56 × 40,984.64
  4. Step 4: Simplify right side
    71,195.60x = 4,026,927,769.96
  5. Step 5: Solve for x
    x = 4,026,927,769.96/71,195.60
  6. Step 6: Final answer
    x = 56,561.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.