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Finding the Fourth Proportional to 77,548.53, 107,016.30 and 43,557.54

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Solution

The fourth proportional to 77,548.53, 107,016.30 and 43,557.54 is: 60,109.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,548.53 : 107,016.30 = 43,557.54 : x
  2. Step 2: Convert to fraction form
    77,548.53/107,016.30 = 43,557.54/x
  3. Step 3: Cross multiply
    77,548.53x = 107,016.30 × 43,557.54
  4. Step 4: Simplify right side
    77,548.53x = 4,661,366,767.90
  5. Step 5: Solve for x
    x = 4,661,366,767.90/77,548.53
  6. Step 6: Final answer
    x = 60,109.03

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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.