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Finding the Fourth Proportional to 193,079.84, 266,439.24 and 112,520.48

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Solution

The fourth proportional to 193,079.84, 266,439.24 and 112,520.48 is: 155,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,079.84 : 266,439.24 = 112,520.48 : x
  2. Step 2: Convert to fraction form
    193,079.84/266,439.24 = 112,520.48/x
  3. Step 3: Cross multiply
    193,079.84x = 266,439.24 × 112,520.48
  4. Step 4: Simplify right side
    193,079.84x = 29,979,871,175.64
  5. Step 5: Solve for x
    x = 29,979,871,175.64/193,079.84
  6. Step 6: Final answer
    x = 155,271.89

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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.