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Finding the Fourth Proportional to 58,611.38, 87,665.88 and 54,356.98

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Solution

The fourth proportional to 58,611.38, 87,665.88 and 54,356.98 is: 81,302.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,611.38 : 87,665.88 = 54,356.98 : x
  2. Step 2: Convert to fraction form
    58,611.38/87,665.88 = 54,356.98/x
  3. Step 3: Cross multiply
    58,611.38x = 87,665.88 × 54,356.98
  4. Step 4: Simplify right side
    58,611.38x = 4,765,252,485.84
  5. Step 5: Solve for x
    x = 4,765,252,485.84/58,611.38
  6. Step 6: Final answer
    x = 81,302.52

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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.