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Finding the Fourth Proportional to 86,296.91, 119,126.59 and 58,019

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Solution

The fourth proportional to 86,296.91, 119,126.59 and 58,019 is: 80,091.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,296.91 : 119,126.59 = 58,019 : x
  2. Step 2: Convert to fraction form
    86,296.91/119,126.59 = 58,019/x
  3. Step 3: Cross multiply
    86,296.91x = 119,126.59 × 58,019
  4. Step 4: Simplify right side
    86,296.91x = 6,911,605,625.21
  5. Step 5: Solve for x
    x = 6,911,605,625.21/86,296.91
  6. Step 6: Final answer
    x = 80,091.00

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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.