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Finding the Fourth Proportional to 66,696.71, 100,073.15 and 29,237.45

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Solution

The fourth proportional to 66,696.71, 100,073.15 and 29,237.45 is: 43,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,696.71 : 100,073.15 = 29,237.45 : x
  2. Step 2: Convert to fraction form
    66,696.71/100,073.15 = 29,237.45/x
  3. Step 3: Cross multiply
    66,696.71x = 100,073.15 × 29,237.45
  4. Step 4: Simplify right side
    66,696.71x = 2,925,883,573.28
  5. Step 5: Solve for x
    x = 2,925,883,573.28/66,696.71
  6. Step 6: Final answer
    x = 43,868.48

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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.