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Finding the Fourth Proportional to 144,963.54, 217,466.28 and 45,132.66

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Solution

The fourth proportional to 144,963.54, 217,466.28 and 45,132.66 is: 67,705.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,963.54 : 217,466.28 = 45,132.66 : x
  2. Step 2: Convert to fraction form
    144,963.54/217,466.28 = 45,132.66/x
  3. Step 3: Cross multiply
    144,963.54x = 217,466.28 × 45,132.66
  4. Step 4: Simplify right side
    144,963.54x = 9,814,831,676.70
  5. Step 5: Solve for x
    x = 9,814,831,676.70/144,963.54
  6. Step 6: Final answer
    x = 67,705.52

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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.