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Finding the Fourth Proportional to 94,371.72, 130,230.92 and 54,109.20

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Solution

The fourth proportional to 94,371.72, 130,230.92 and 54,109.20 is: 74,669.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,371.72 : 130,230.92 = 54,109.20 : x
  2. Step 2: Convert to fraction form
    94,371.72/130,230.92 = 54,109.20/x
  3. Step 3: Cross multiply
    94,371.72x = 130,230.92 × 54,109.20
  4. Step 4: Simplify right side
    94,371.72x = 7,046,690,896.46
  5. Step 5: Solve for x
    x = 7,046,690,896.46/94,371.72
  6. Step 6: Final answer
    x = 74,669.52

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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.