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Finding the Fourth Proportional to 91,696.88, 126,542.04 and 53,482.82

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Solution

The fourth proportional to 91,696.88, 126,542.04 and 53,482.82 is: 73,806.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,696.88 : 126,542.04 = 53,482.82 : x
  2. Step 2: Convert to fraction form
    91,696.88/126,542.04 = 53,482.82/x
  3. Step 3: Cross multiply
    91,696.88x = 126,542.04 × 53,482.82
  4. Step 4: Simplify right side
    91,696.88x = 6,767,824,515.04
  5. Step 5: Solve for x
    x = 6,767,824,515.04/91,696.88
  6. Step 6: Final answer
    x = 73,806.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.