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Finding the Fourth Proportional to 144,701.40, 217,116.90 and 51,274.20

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Solution

The fourth proportional to 144,701.40, 217,116.90 and 51,274.20 is: 76,934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,701.40 : 217,116.90 = 51,274.20 : x
  2. Step 2: Convert to fraction form
    144,701.40/217,116.90 = 51,274.20/x
  3. Step 3: Cross multiply
    144,701.40x = 217,116.90 × 51,274.20
  4. Step 4: Simplify right side
    144,701.40x = 11,132,495,353.98
  5. Step 5: Solve for x
    x = 11,132,495,353.98/144,701.40
  6. Step 6: Final answer
    x = 76,934.26

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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.