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Finding the Fourth Proportional to 119,957.67, 180,053.15 and 57,671.91

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Solution

The fourth proportional to 119,957.67, 180,053.15 and 57,671.91 is: 86,563.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,957.67 : 180,053.15 = 57,671.91 : x
  2. Step 2: Convert to fraction form
    119,957.67/180,053.15 = 57,671.91/x
  3. Step 3: Cross multiply
    119,957.67x = 180,053.15 × 57,671.91
  4. Step 4: Simplify right side
    119,957.67x = 10,384,008,773.66
  5. Step 5: Solve for x
    x = 10,384,008,773.66/119,957.67
  6. Step 6: Final answer
    x = 86,563.94

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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.