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Finding the Fourth Proportional to 77,851.24, 107,428.62 and 43,858.24

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Solution

The fourth proportional to 77,851.24, 107,428.62 and 43,858.24 is: 60,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,851.24 : 107,428.62 = 43,858.24 : x
  2. Step 2: Convert to fraction form
    77,851.24/107,428.62 = 43,858.24/x
  3. Step 3: Cross multiply
    77,851.24x = 107,428.62 × 43,858.24
  4. Step 4: Simplify right side
    77,851.24x = 4,711,630,198.83
  5. Step 5: Solve for x
    x = 4,711,630,198.83/77,851.24
  6. Step 6: Final answer
    x = 60,520.94

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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.