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Finding the Fourth Proportional to 93,162.82, 128,560.26 and 52,871.10

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Solution

The fourth proportional to 93,162.82, 128,560.26 and 52,871.10 is: 72,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,162.82 : 128,560.26 = 52,871.10 : x
  2. Step 2: Convert to fraction form
    93,162.82/128,560.26 = 52,871.10/x
  3. Step 3: Cross multiply
    93,162.82x = 128,560.26 × 52,871.10
  4. Step 4: Simplify right side
    93,162.82x = 6,797,122,098.13
  5. Step 5: Solve for x
    x = 6,797,122,098.13/93,162.82
  6. Step 6: Final answer
    x = 72,959.60

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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.