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Finding the Fourth Proportional to 118,957.37, 164,171.70 and 65,252.85

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Solution

The fourth proportional to 118,957.37, 164,171.70 and 65,252.85 is: 90,054.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,957.37 : 164,171.70 = 65,252.85 : x
  2. Step 2: Convert to fraction form
    118,957.37/164,171.70 = 65,252.85/x
  3. Step 3: Cross multiply
    118,957.37x = 164,171.70 × 65,252.85
  4. Step 4: Simplify right side
    118,957.37x = 10,712,671,314.35
  5. Step 5: Solve for x
    x = 10,712,671,314.35/118,957.37
  6. Step 6: Final answer
    x = 90,054.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.