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Finding the Fourth Proportional to 270,484.71, 405,763.98 and 112,676.25

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Solution

The fourth proportional to 270,484.71, 405,763.98 and 112,676.25 is: 169,029.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,484.71 : 405,763.98 = 112,676.25 : x
  2. Step 2: Convert to fraction form
    270,484.71/405,763.98 = 112,676.25/x
  3. Step 3: Cross multiply
    270,484.71x = 405,763.98 × 112,676.25
  4. Step 4: Simplify right side
    270,484.71x = 45,719,963,651.48
  5. Step 5: Solve for x
    x = 45,719,963,651.48/270,484.71
  6. Step 6: Final answer
    x = 169,029.75

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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.