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Finding the Fourth Proportional to 144,959.40, 217,428.30 and 60,697.80

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Solution

The fourth proportional to 144,959.40, 217,428.30 and 60,697.80 is: 91,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,959.40 : 217,428.30 = 60,697.80 : x
  2. Step 2: Convert to fraction form
    144,959.40/217,428.30 = 60,697.80/x
  3. Step 3: Cross multiply
    144,959.40x = 217,428.30 × 60,697.80
  4. Step 4: Simplify right side
    144,959.40x = 13,197,419,467.74
  5. Step 5: Solve for x
    x = 13,197,419,467.74/144,959.40
  6. Step 6: Final answer
    x = 91,042.18

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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.