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Finding the Fourth Proportional to 64,941,216.80, 89,615,694.54 and 35,572,679.66

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Solution

The fourth proportional to 64,941,216.80, 89,615,694.54 and 35,572,679.66 is: 49,088,553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,941,216.80 : 89,615,694.54 = 35,572,679.66 : x
  2. Step 2: Convert to fraction form
    64,941,216.80/89,615,694.54 = 35,572,679.66/x
  3. Step 3: Cross multiply
    64,941,216.80x = 89,615,694.54 × 35,572,679.66
  4. Step 4: Simplify right side
    64,941,216.80x = 3,187,870,394,379,831
  5. Step 5: Solve for x
    x = 3,187,870,394,379,831/64,941,216.80
  6. Step 6: Final answer
    x = 49,088,553.49

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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.