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Finding the Fourth Proportional to 136,955.22, 205,466.04 and 43,461.78

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Solution

The fourth proportional to 136,955.22, 205,466.04 and 43,461.78 is: 65,203.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,955.22 : 205,466.04 = 43,461.78 : x
  2. Step 2: Convert to fraction form
    136,955.22/205,466.04 = 43,461.78/x
  3. Step 3: Cross multiply
    136,955.22x = 205,466.04 × 43,461.78
  4. Step 4: Simplify right side
    136,955.22x = 8,929,919,827.95
  5. Step 5: Solve for x
    x = 8,929,919,827.95/136,955.22
  6. Step 6: Final answer
    x = 65,203.21

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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.