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Finding the Fourth Proportional to 293,991.80, 405,882.59 and 185,189.40

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Solution

The fourth proportional to 293,991.80, 405,882.59 and 185,189.40 is: 255,670.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,991.80 : 405,882.59 = 185,189.40 : x
  2. Step 2: Convert to fraction form
    293,991.80/405,882.59 = 185,189.40/x
  3. Step 3: Cross multiply
    293,991.80x = 405,882.59 × 185,189.40
  4. Step 4: Simplify right side
    293,991.80x = 75,165,152,386.60
  5. Step 5: Solve for x
    x = 75,165,152,386.60/293,991.80
  6. Step 6: Final answer
    x = 255,670.92

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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.