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Finding the Fourth Proportional to 141,920.73, 212,819.27 and 40,696.45

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Solution

The fourth proportional to 141,920.73, 212,819.27 and 40,696.45 is: 61,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,920.73 : 212,819.27 = 40,696.45 : x
  2. Step 2: Convert to fraction form
    141,920.73/212,819.27 = 40,696.45/x
  3. Step 3: Cross multiply
    141,920.73x = 212,819.27 × 40,696.45
  4. Step 4: Simplify right side
    141,920.73x = 8,660,988,045.06
  5. Step 5: Solve for x
    x = 8,660,988,045.06/141,920.73
  6. Step 6: Final answer
    x = 61,026.94

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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.