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Finding the Fourth Proportional to 54,577,892.80, 81,811,726.80 and 27,242,142.40

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Solution

The fourth proportional to 54,577,892.80, 81,811,726.80 and 27,242,142.40 is: 40,835,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,577,892.80 : 81,811,726.80 = 27,242,142.40 : x
  2. Step 2: Convert to fraction form
    54,577,892.80/81,811,726.80 = 27,242,142.40/x
  3. Step 3: Cross multiply
    54,577,892.80x = 81,811,726.80 × 27,242,142.40
  4. Step 4: Simplify right side
    54,577,892.80x = 2,228,726,711,475,496
  5. Step 5: Solve for x
    x = 2,228,726,711,475,496/54,577,892.80
  6. Step 6: Final answer
    x = 40,835,704.66

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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.