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Finding the Fourth Proportional to 104,490.91, 156,762.87 and 48,371.50

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Solution

The fourth proportional to 104,490.91, 156,762.87 and 48,371.50 is: 72,569.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,490.91 : 156,762.87 = 48,371.50 : x
  2. Step 2: Convert to fraction form
    104,490.91/156,762.87 = 48,371.50/x
  3. Step 3: Cross multiply
    104,490.91x = 156,762.87 × 48,371.50
  4. Step 4: Simplify right side
    104,490.91x = 7,582,855,166.21
  5. Step 5: Solve for x
    x = 7,582,855,166.21/104,490.91
  6. Step 6: Final answer
    x = 72,569.52

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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.