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Finding the Fourth Proportional to 66,694.84, 100,070.34 and 29,235.58

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Solution

The fourth proportional to 66,694.84, 100,070.34 and 29,235.58 is: 43,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,694.84 : 100,070.34 = 29,235.58 : x
  2. Step 2: Convert to fraction form
    66,694.84/100,070.34 = 29,235.58/x
  3. Step 3: Cross multiply
    66,694.84x = 100,070.34 × 29,235.58
  4. Step 4: Simplify right side
    66,694.84x = 2,925,614,430.70
  5. Step 5: Solve for x
    x = 2,925,614,430.70/66,694.84
  6. Step 6: Final answer
    x = 43,865.68

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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.