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Finding the Fourth Proportional to 117,169.50, 161,693.88 and 63,454.56

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Solution

The fourth proportional to 117,169.50, 161,693.88 and 63,454.56 is: 87,567.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,169.50 : 161,693.88 = 63,454.56 : x
  2. Step 2: Convert to fraction form
    117,169.50/161,693.88 = 63,454.56/x
  3. Step 3: Cross multiply
    117,169.50x = 161,693.88 × 63,454.56
  4. Step 4: Simplify right side
    117,169.50x = 10,260,214,010.09
  5. Step 5: Solve for x
    x = 10,260,214,010.09/117,169.50
  6. Step 6: Final answer
    x = 87,567.28

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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.