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Finding the Fourth Proportional to 120,957.57, 181,491.44 and 61,762.77

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Solution

The fourth proportional to 120,957.57, 181,491.44 and 61,762.77 is: 92,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,957.57 : 181,491.44 = 61,762.77 : x
  2. Step 2: Convert to fraction form
    120,957.57/181,491.44 = 61,762.77/x
  3. Step 3: Cross multiply
    120,957.57x = 181,491.44 × 61,762.77
  4. Step 4: Simplify right side
    120,957.57x = 11,209,413,756.87
  5. Step 5: Solve for x
    x = 11,209,413,756.87/120,957.57
  6. Step 6: Final answer
    x = 92,672.28

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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.