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Finding the Fourth Proportional to 66,355.53, 99,299.43 and 41,407.32

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Solution

The fourth proportional to 66,355.53, 99,299.43 and 41,407.32 is: 61,965.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,355.53 : 99,299.43 = 41,407.32 : x
  2. Step 2: Convert to fraction form
    66,355.53/99,299.43 = 41,407.32/x
  3. Step 3: Cross multiply
    66,355.53x = 99,299.43 × 41,407.32
  4. Step 4: Simplify right side
    66,355.53x = 4,111,723,273.83
  5. Step 5: Solve for x
    x = 4,111,723,273.83/66,355.53
  6. Step 6: Final answer
    x = 61,965.04

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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.