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Finding the Fourth Proportional to 147,216.94, 203,159.39 and 80,148.94

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Solution

The fourth proportional to 147,216.94, 203,159.39 and 80,148.94 is: 110,605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,216.94 : 203,159.39 = 80,148.94 : x
  2. Step 2: Convert to fraction form
    147,216.94/203,159.39 = 80,148.94/x
  3. Step 3: Cross multiply
    147,216.94x = 203,159.39 × 80,148.94
  4. Step 4: Simplify right side
    147,216.94x = 16,283,008,850.90
  5. Step 5: Solve for x
    x = 16,283,008,850.90/147,216.94
  6. Step 6: Final answer
    x = 110,605.54

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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.