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Finding the Fourth Proportional to 481,886.11, 722,068.73 and 177,861.81

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Solution

The fourth proportional to 481,886.11, 722,068.73 and 177,861.81 is: 266,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,886.11 : 722,068.73 = 177,861.81 : x
  2. Step 2: Convert to fraction form
    481,886.11/722,068.73 = 177,861.81/x
  3. Step 3: Cross multiply
    481,886.11x = 722,068.73 × 177,861.81
  4. Step 4: Simplify right side
    481,886.11x = 128,428,448,999.10
  5. Step 5: Solve for x
    x = 128,428,448,999.10/481,886.11
  6. Step 6: Final answer
    x = 266,512.04

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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.