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Finding the Fourth Proportional to 66,695.84, 100,071.84 and 29,236.58

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Solution

The fourth proportional to 66,695.84, 100,071.84 and 29,236.58 is: 43,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,695.84 : 100,071.84 = 29,236.58 : x
  2. Step 2: Convert to fraction form
    66,695.84/100,071.84 = 29,236.58/x
  3. Step 3: Cross multiply
    66,695.84x = 100,071.84 × 29,236.58
  4. Step 4: Simplify right side
    66,695.84x = 2,925,758,355.91
  5. Step 5: Solve for x
    x = 2,925,758,355.91/66,695.84
  6. Step 6: Final answer
    x = 43,867.18

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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.