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Finding the Fourth Proportional to 118,959.44, 178,382.66 and 69,054.84

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Solution

The fourth proportional to 118,959.44, 178,382.66 and 69,054.84 is: 103,549.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,959.44 : 178,382.66 = 69,054.84 : x
  2. Step 2: Convert to fraction form
    118,959.44/178,382.66 = 69,054.84/x
  3. Step 3: Cross multiply
    118,959.44x = 178,382.66 × 69,054.84
  4. Step 4: Simplify right side
    118,959.44x = 12,318,185,699.80
  5. Step 5: Solve for x
    x = 12,318,185,699.80/118,959.44
  6. Step 6: Final answer
    x = 103,549.46

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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.