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Finding the Fourth Proportional to 58,876.80, 88,315.20 and 45,738.60

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Solution

The fourth proportional to 58,876.80, 88,315.20 and 45,738.60 is: 68,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,876.80 : 88,315.20 = 45,738.60 : x
  2. Step 2: Convert to fraction form
    58,876.80/88,315.20 = 45,738.60/x
  3. Step 3: Cross multiply
    58,876.80x = 88,315.20 × 45,738.60
  4. Step 4: Simplify right side
    58,876.80x = 4,039,413,606.72
  5. Step 5: Solve for x
    x = 4,039,413,606.72/58,876.80
  6. Step 6: Final answer
    x = 68,607.90

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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.