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Finding the Fourth Proportional to 105,060.54, 144,983.35 and 57,313.89

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Solution

The fourth proportional to 105,060.54, 144,983.35 and 57,313.89 is: 79,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,060.54 : 144,983.35 = 57,313.89 : x
  2. Step 2: Convert to fraction form
    105,060.54/144,983.35 = 57,313.89/x
  3. Step 3: Cross multiply
    105,060.54x = 144,983.35 × 57,313.89
  4. Step 4: Simplify right side
    105,060.54x = 8,309,559,773.73
  5. Step 5: Solve for x
    x = 8,309,559,773.73/105,060.54
  6. Step 6: Final answer
    x = 79,093.06

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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.