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Finding the Fourth Proportional to 93,592.40, 140,388.60 and 82,878.80

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Solution

The fourth proportional to 93,592.40, 140,388.60 and 82,878.80 is: 124,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,592.40 : 140,388.60 = 82,878.80 : x
  2. Step 2: Convert to fraction form
    93,592.40/140,388.60 = 82,878.80/x
  3. Step 3: Cross multiply
    93,592.40x = 140,388.60 × 82,878.80
  4. Step 4: Simplify right side
    93,592.40x = 11,635,238,701.68
  5. Step 5: Solve for x
    x = 11,635,238,701.68/93,592.40
  6. Step 6: Final answer
    x = 124,318.20

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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.