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Finding the Fourth Proportional to 103,371.92, 142,653.25 and 58,049.94

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Solution

The fourth proportional to 103,371.92, 142,653.25 and 58,049.94 is: 80,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,371.92 : 142,653.25 = 58,049.94 : x
  2. Step 2: Convert to fraction form
    103,371.92/142,653.25 = 58,049.94/x
  3. Step 3: Cross multiply
    103,371.92x = 142,653.25 × 58,049.94
  4. Step 4: Simplify right side
    103,371.92x = 8,281,012,809.60
  5. Step 5: Solve for x
    x = 8,281,012,809.60/103,371.92
  6. Step 6: Final answer
    x = 80,108.92

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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.