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Finding the Fourth Proportional to 58,974, 88,487.05 and 45,761.79

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Solution

The fourth proportional to 58,974, 88,487.05 and 45,761.79 is: 68,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,974 : 88,487.05 = 45,761.79 : x
  2. Step 2: Convert to fraction form
    58,974/88,487.05 = 45,761.79/x
  3. Step 3: Cross multiply
    58,974x = 88,487.05 × 45,761.79
  4. Step 4: Simplify right side
    58,974x = 4,049,325,799.82
  5. Step 5: Solve for x
    x = 4,049,325,799.82/58,974
  6. Step 6: Final answer
    x = 68,662.90

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Why These Related Problems?

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