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Finding the Fourth Proportional to 135,718.84, 203,607.78 and 56,792.44

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Solution

The fourth proportional to 135,718.84, 203,607.78 and 56,792.44 is: 85,201.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,718.84 : 203,607.78 = 56,792.44 : x
  2. Step 2: Convert to fraction form
    135,718.84/203,607.78 = 56,792.44/x
  3. Step 3: Cross multiply
    135,718.84x = 203,607.78 × 56,792.44
  4. Step 4: Simplify right side
    135,718.84x = 11,563,382,629.18
  5. Step 5: Solve for x
    x = 11,563,382,629.18/135,718.84
  6. Step 6: Final answer
    x = 85,201.01

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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.