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Finding the Fourth Proportional to 118,705.66, 163,815.87 and 73,382.52

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Solution

The fourth proportional to 118,705.66, 163,815.87 and 73,382.52 is: 101,269.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,705.66 : 163,815.87 = 73,382.52 : x
  2. Step 2: Convert to fraction form
    118,705.66/163,815.87 = 73,382.52/x
  3. Step 3: Cross multiply
    118,705.66x = 163,815.87 × 73,382.52
  4. Step 4: Simplify right side
    118,705.66x = 12,021,221,356.59
  5. Step 5: Solve for x
    x = 12,021,221,356.59/118,705.66
  6. Step 6: Final answer
    x = 101,269.15

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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.