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Finding the Fourth Proportional to 118,886.25, 178,203.69 and 43,958.28

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Solution

The fourth proportional to 118,886.25, 178,203.69 and 43,958.28 is: 65,890.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,886.25 : 178,203.69 = 43,958.28 : x
  2. Step 2: Convert to fraction form
    118,886.25/178,203.69 = 43,958.28/x
  3. Step 3: Cross multiply
    118,886.25x = 178,203.69 × 43,958.28
  4. Step 4: Simplify right side
    118,886.25x = 7,833,527,702.05
  5. Step 5: Solve for x
    x = 7,833,527,702.05/118,886.25
  6. Step 6: Final answer
    x = 65,890.95

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1.5x scale

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.