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Finding the Fourth Proportional to 57,302.88, 79,076.73 and 31,807.77

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Solution

The fourth proportional to 57,302.88, 79,076.73 and 31,807.77 is: 43,894.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,302.88 : 79,076.73 = 31,807.77 : x
  2. Step 2: Convert to fraction form
    57,302.88/79,076.73 = 31,807.77/x
  3. Step 3: Cross multiply
    57,302.88x = 79,076.73 × 31,807.77
  4. Step 4: Simplify right side
    57,302.88x = 2,515,254,440.19
  5. Step 5: Solve for x
    x = 2,515,254,440.19/57,302.88
  6. Step 6: Final answer
    x = 43,894.03

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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.