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Finding the Fourth Proportional to 66,456.63, 99,750.51 and 29,042.51

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Solution

The fourth proportional to 66,456.63, 99,750.51 and 29,042.51 is: 43,592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,456.63 : 99,750.51 = 29,042.51 : x
  2. Step 2: Convert to fraction form
    66,456.63/99,750.51 = 29,042.51/x
  3. Step 3: Cross multiply
    66,456.63x = 99,750.51 × 29,042.51
  4. Step 4: Simplify right side
    66,456.63x = 2,897,004,685.43
  5. Step 5: Solve for x
    x = 2,897,004,685.43/66,456.63
  6. Step 6: Final answer
    x = 43,592.41

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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.