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Finding the Fourth Proportional to 81,951,602.40, 122,933,624.40 and 24,439,384.80

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Solution

The fourth proportional to 81,951,602.40, 122,933,624.40 and 24,439,384.80 is: 36,660,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,951,602.40 : 122,933,624.40 = 24,439,384.80 : x
  2. Step 2: Convert to fraction form
    81,951,602.40/122,933,624.40 = 24,439,384.80/x
  3. Step 3: Cross multiply
    81,951,602.40x = 122,933,624.40 × 24,439,384.80
  4. Step 4: Simplify right side
    81,951,602.40x = 3,004,422,151,570,269.50
  5. Step 5: Solve for x
    x = 3,004,422,151,570,269.50/81,951,602.40
  6. Step 6: Final answer
    x = 36,660,932.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.