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Finding the Fourth Proportional to 290,802.83, 436,119.44 and 113,267.61

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Solution

The fourth proportional to 290,802.83, 436,119.44 and 113,267.61 is: 169,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,802.83 : 436,119.44 = 113,267.61 : x
  2. Step 2: Convert to fraction form
    290,802.83/436,119.44 = 113,267.61/x
  3. Step 3: Cross multiply
    290,802.83x = 436,119.44 × 113,267.61
  4. Step 4: Simplify right side
    290,802.83x = 49,398,206,077.00
  5. Step 5: Solve for x
    x = 49,398,206,077.00/290,802.83
  6. Step 6: Final answer
    x = 169,868.38

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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.