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Finding the Fourth Proportional to 144,543.28, 216,820.48 and 44,694.48

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Solution

The fourth proportional to 144,543.28, 216,820.48 and 44,694.48 is: 67,043.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,543.28 : 216,820.48 = 44,694.48 : x
  2. Step 2: Convert to fraction form
    144,543.28/216,820.48 = 44,694.48/x
  3. Step 3: Cross multiply
    144,543.28x = 216,820.48 × 44,694.48
  4. Step 4: Simplify right side
    144,543.28x = 9,690,678,606.95
  5. Step 5: Solve for x
    x = 9,690,678,606.95/144,543.28
  6. Step 6: Final answer
    x = 67,043.44

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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.