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Finding the Fourth Proportional to 57,331.65, 79,122.65 and 31,842.93

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Solution

The fourth proportional to 57,331.65, 79,122.65 and 31,842.93 is: 43,946.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,331.65 : 79,122.65 = 31,842.93 : x
  2. Step 2: Convert to fraction form
    57,331.65/79,122.65 = 31,842.93/x
  3. Step 3: Cross multiply
    57,331.65x = 79,122.65 × 31,842.93
  4. Step 4: Simplify right side
    57,331.65x = 2,519,496,846.15
  5. Step 5: Solve for x
    x = 2,519,496,846.15/57,331.65
  6. Step 6: Final answer
    x = 43,946.00

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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.