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Finding the Fourth Proportional to 77,848.24, 107,424.48 and 43,855.24

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Solution

The fourth proportional to 77,848.24, 107,424.48 and 43,855.24 is: 60,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,848.24 : 107,424.48 = 43,855.24 : x
  2. Step 2: Convert to fraction form
    77,848.24/107,424.48 = 43,855.24/x
  3. Step 3: Cross multiply
    77,848.24x = 107,424.48 × 43,855.24
  4. Step 4: Simplify right side
    77,848.24x = 4,711,126,352.28
  5. Step 5: Solve for x
    x = 4,711,126,352.28/77,848.24
  6. Step 6: Final answer
    x = 60,516.80

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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.