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Finding the Fourth Proportional to 434,324.32, 651,477.21 and 118,781.22

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Solution

The fourth proportional to 434,324.32, 651,477.21 and 118,781.22 is: 178,169.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,324.32 : 651,477.21 = 118,781.22 : x
  2. Step 2: Convert to fraction form
    434,324.32/651,477.21 = 118,781.22/x
  3. Step 3: Cross multiply
    434,324.32x = 651,477.21 × 118,781.22
  4. Step 4: Simplify right side
    434,324.32x = 77,383,257,806.00
  5. Step 5: Solve for x
    x = 77,383,257,806.00/434,324.32
  6. Step 6: Final answer
    x = 178,169.29

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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.