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Finding the Fourth Proportional to 103,755.59, 143,187.50 and 58,447.97

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Solution

The fourth proportional to 103,755.59, 143,187.50 and 58,447.97 is: 80,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,755.59 : 143,187.50 = 58,447.97 : x
  2. Step 2: Convert to fraction form
    103,755.59/143,187.50 = 58,447.97/x
  3. Step 3: Cross multiply
    103,755.59x = 143,187.50 × 58,447.97
  4. Step 4: Simplify right side
    103,755.59x = 8,369,018,134.56
  5. Step 5: Solve for x
    x = 8,369,018,134.56/103,755.59
  6. Step 6: Final answer
    x = 80,660.89

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1.5x scale

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.