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Finding the Fourth Proportional to 54,203,485.80, 81,332,784.90 and 36,020,330.40

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Solution

The fourth proportional to 54,203,485.80, 81,332,784.90 and 36,020,330.40 is: 54,048,807.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,203,485.80 : 81,332,784.90 = 36,020,330.40 : x
  2. Step 2: Convert to fraction form
    54,203,485.80/81,332,784.90 = 36,020,330.40/x
  3. Step 3: Cross multiply
    54,203,485.80x = 81,332,784.90 × 36,020,330.40
  4. Step 4: Simplify right side
    54,203,485.80x = 2,929,633,784,450,131
  5. Step 5: Solve for x
    x = 2,929,633,784,450,131/54,203,485.80
  6. Step 6: Final answer
    x = 54,048,807.77

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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.