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Finding the Fourth Proportional to 66,557.56, 91,864.92 and 43,900.60

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Solution

The fourth proportional to 66,557.56, 91,864.92 and 43,900.60 is: 60,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,557.56 : 91,864.92 = 43,900.60 : x
  2. Step 2: Convert to fraction form
    66,557.56/91,864.92 = 43,900.60/x
  3. Step 3: Cross multiply
    66,557.56x = 91,864.92 × 43,900.60
  4. Step 4: Simplify right side
    66,557.56x = 4,032,925,106.95
  5. Step 5: Solve for x
    x = 4,032,925,106.95/66,557.56
  6. Step 6: Final answer
    x = 60,593.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.