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Finding the Fourth Proportional to 94,188, 129,990.96 and 54,444

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Solution

The fourth proportional to 94,188, 129,990.96 and 54,444 is: 75,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,188 : 129,990.96 = 54,444 : x
  2. Step 2: Convert to fraction form
    94,188/129,990.96 = 54,444/x
  3. Step 3: Cross multiply
    94,188x = 129,990.96 × 54,444
  4. Step 4: Simplify right side
    94,188x = 7,077,227,826.24
  5. Step 5: Solve for x
    x = 7,077,227,826.24/94,188
  6. Step 6: Final answer
    x = 75,139.38

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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.