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Finding the Fourth Proportional to 57,894,571.94, 79,894,509.57 and 31,789,089.90

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Solution

The fourth proportional to 57,894,571.94, 79,894,509.57 and 31,789,089.90 is: 43,868,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,894,571.94 : 79,894,509.57 = 31,789,089.90 : x
  2. Step 2: Convert to fraction form
    57,894,571.94/79,894,509.57 = 31,789,089.90/x
  3. Step 3: Cross multiply
    57,894,571.94x = 79,894,509.57 × 31,789,089.90
  4. Step 4: Simplify right side
    57,894,571.94x = 2,539,773,747,237,140
  5. Step 5: Solve for x
    x = 2,539,773,747,237,140/57,894,571.94
  6. Step 6: Final answer
    x = 43,868,944.23

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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.