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Finding the Fourth Proportional to 180,487.72, 270,435.66 and 127,802.62

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Solution

The fourth proportional to 180,487.72, 270,435.66 and 127,802.62 is: 191,494.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,487.72 : 270,435.66 = 127,802.62 : x
  2. Step 2: Convert to fraction form
    180,487.72/270,435.66 = 127,802.62/x
  3. Step 3: Cross multiply
    180,487.72x = 270,435.66 × 127,802.62
  4. Step 4: Simplify right side
    180,487.72x = 34,562,385,889.43
  5. Step 5: Solve for x
    x = 34,562,385,889.43/180,487.72
  6. Step 6: Final answer
    x = 191,494.39

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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.