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Finding the Fourth Proportional to 141,696.84, 212,573.28 and 40,495.80

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Solution

The fourth proportional to 141,696.84, 212,573.28 and 40,495.80 is: 60,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,696.84 : 212,573.28 = 40,495.80 : x
  2. Step 2: Convert to fraction form
    141,696.84/212,573.28 = 40,495.80/x
  3. Step 3: Cross multiply
    141,696.84x = 212,573.28 × 40,495.80
  4. Step 4: Simplify right side
    141,696.84x = 8,608,323,969.36
  5. Step 5: Solve for x
    x = 8,608,323,969.36/141,696.84
  6. Step 6: Final answer
    x = 60,751.70

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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.