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Finding the Fourth Proportional to 86,295.91, 119,125.21 and 58,018.00

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Solution

The fourth proportional to 86,295.91, 119,125.21 and 58,018.00 is: 80,089.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,295.91 : 119,125.21 = 58,018.00 : x
  2. Step 2: Convert to fraction form
    86,295.91/119,125.21 = 58,018.00/x
  3. Step 3: Cross multiply
    86,295.91x = 119,125.21 × 58,018.00
  4. Step 4: Simplify right side
    86,295.91x = 6,911,405,824.85
  5. Step 5: Solve for x
    x = 6,911,405,824.85/86,295.91
  6. Step 6: Final answer
    x = 80,089.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.