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Finding the Fourth Proportional to 85,666.10, 128,507.67 and 29,498.73

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Solution

The fourth proportional to 85,666.10, 128,507.67 and 29,498.73 is: 44,251.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,666.10 : 128,507.67 = 29,498.73 : x
  2. Step 2: Convert to fraction form
    85,666.10/128,507.67 = 29,498.73/x
  3. Step 3: Cross multiply
    85,666.10x = 128,507.67 × 29,498.73
  4. Step 4: Simplify right side
    85,666.10x = 3,790,813,060.26
  5. Step 5: Solve for x
    x = 3,790,813,060.26/85,666.10
  6. Step 6: Final answer
    x = 44,251.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.