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Finding the Fourth Proportional to 147,963.50, 204,190.35 and 80,895.50

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Solution

The fourth proportional to 147,963.50, 204,190.35 and 80,895.50 is: 111,636.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,963.50 : 204,190.35 = 80,895.50 : x
  2. Step 2: Convert to fraction form
    147,963.50/204,190.35 = 80,895.50/x
  3. Step 3: Cross multiply
    147,963.50x = 204,190.35 × 80,895.50
  4. Step 4: Simplify right side
    147,963.50x = 16,518,080,458.43
  5. Step 5: Solve for x
    x = 16,518,080,458.43/147,963.50
  6. Step 6: Final answer
    x = 111,636.18

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1.5x scale

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.