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Finding the Fourth Proportional to 66,704.31, 99,801.72 and 58,322.43

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Solution

The fourth proportional to 66,704.31, 99,801.72 and 58,322.43 is: 87,260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,704.31 : 99,801.72 = 58,322.43 : x
  2. Step 2: Convert to fraction form
    66,704.31/99,801.72 = 58,322.43/x
  3. Step 3: Cross multiply
    66,704.31x = 99,801.72 × 58,322.43
  4. Step 4: Simplify right side
    66,704.31x = 5,820,678,828.58
  5. Step 5: Solve for x
    x = 5,820,678,828.58/66,704.31
  6. Step 6: Final answer
    x = 87,260.91

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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.