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Finding the Fourth Proportional to 58,611.87, 87,666.63 and 54,357.48

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Solution

The fourth proportional to 58,611.87, 87,666.63 and 54,357.48 is: 81,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,611.87 : 87,666.63 = 54,357.48 : x
  2. Step 2: Convert to fraction form
    58,611.87/87,666.63 = 54,357.48/x
  3. Step 3: Cross multiply
    58,611.87x = 87,666.63 × 54,357.48
  4. Step 4: Simplify right side
    58,611.87x = 4,765,337,086.89
  5. Step 5: Solve for x
    x = 4,765,337,086.89/58,611.87
  6. Step 6: Final answer
    x = 81,303.28

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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.