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Finding the Third Proportional to 88,168 and 128,476

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Solution

The third proportional to 88,168 and 128,476 is: 187,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,168 : 128,476 = 128,476 : x
  2. Step 2: Convert to fraction form
    88,168/128,476 = 128,476/x
  3. Step 3: Cross multiply
    88,168x = 128,476 × 128,476
  4. Step 4: Simplify right side
    88,168x = 16,506,082,576
  5. Step 5: Solve for x
    x = 16,506,082,576/88,168
  6. Step 6: Final answer
    x = 187,211.72

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.