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Finding the Fourth Proportional to 273,358.84, 410,035.82 and 86,370.36

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Solution

The fourth proportional to 273,358.84, 410,035.82 and 86,370.36 is: 129,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,358.84 : 410,035.82 = 86,370.36 : x
  2. Step 2: Convert to fraction form
    273,358.84/410,035.82 = 86,370.36/x
  3. Step 3: Cross multiply
    273,358.84x = 410,035.82 × 86,370.36
  4. Step 4: Simplify right side
    273,358.84x = 35,414,941,386.30
  5. Step 5: Solve for x
    x = 35,414,941,386.30/273,358.84
  6. Step 6: Final answer
    x = 129,554.77

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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.