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Finding the Fourth Proportional to 58,752.88, 88,120.20 and 19,309.73

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Solution

The fourth proportional to 58,752.88, 88,120.20 and 19,309.73 is: 28,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,752.88 : 88,120.20 = 19,309.73 : x
  2. Step 2: Convert to fraction form
    58,752.88/88,120.20 = 19,309.73/x
  3. Step 3: Cross multiply
    58,752.88x = 88,120.20 × 19,309.73
  4. Step 4: Simplify right side
    58,752.88x = 1,701,576,901.36
  5. Step 5: Solve for x
    x = 1,701,576,901.36/58,752.88
  6. Step 6: Final answer
    x = 28,961.59

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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.