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Finding the Fourth Proportional to 93,240, 139,883.68 and 27,576

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Solution

The fourth proportional to 93,240, 139,883.68 and 27,576 is: 41,371.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,240 : 139,883.68 = 27,576 : x
  2. Step 2: Convert to fraction form
    93,240/139,883.68 = 27,576/x
  3. Step 3: Cross multiply
    93,240x = 139,883.68 × 27,576
  4. Step 4: Simplify right side
    93,240x = 3,857,432,359.68
  5. Step 5: Solve for x
    x = 3,857,432,359.68/93,240
  6. Step 6: Final answer
    x = 41,371.00

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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.