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Finding the Fourth Proportional to 59,786.20, 89,549.70 and 58,490.20

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Solution

The fourth proportional to 59,786.20, 89,549.70 and 58,490.20 is: 87,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,786.20 : 89,549.70 = 58,490.20 : x
  2. Step 2: Convert to fraction form
    59,786.20/89,549.70 = 58,490.20/x
  3. Step 3: Cross multiply
    59,786.20x = 89,549.70 × 58,490.20
  4. Step 4: Simplify right side
    59,786.20x = 5,237,779,862.94
  5. Step 5: Solve for x
    x = 5,237,779,862.94/59,786.20
  6. Step 6: Final answer
    x = 87,608.51

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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.