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Finding the Fourth Proportional to 454,718.64, 682,130.60 and 151,139.90

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Solution

The fourth proportional to 454,718.64, 682,130.60 and 151,139.90 is: 226,727.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,718.64 : 682,130.60 = 151,139.90 : x
  2. Step 2: Convert to fraction form
    454,718.64/682,130.60 = 151,139.90/x
  3. Step 3: Cross multiply
    454,718.64x = 682,130.60 × 151,139.90
  4. Step 4: Simplify right side
    454,718.64x = 103,097,150,670.94
  5. Step 5: Solve for x
    x = 103,097,150,670.94/454,718.64
  6. Step 6: Final answer
    x = 226,727.35

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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.