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Finding the Fourth Proportional to 86,325.84, 119,148 and 58,015.11

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Solution

The fourth proportional to 86,325.84, 119,148 and 58,015.11 is: 80,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,325.84 : 119,148 = 58,015.11 : x
  2. Step 2: Convert to fraction form
    86,325.84/119,148 = 58,015.11/x
  3. Step 3: Cross multiply
    86,325.84x = 119,148 × 58,015.11
  4. Step 4: Simplify right side
    86,325.84x = 6,912,384,326.28
  5. Step 5: Solve for x
    x = 6,912,384,326.28/86,325.84
  6. Step 6: Final answer
    x = 80,073.18

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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.