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Finding the Third Proportional to 100,328.63 and 155,277

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Solution

The third proportional to 100,328.63 and 155,277 is: 240,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,328.63 : 155,277 = 155,277 : x
  2. Step 2: Convert to fraction form
    100,328.63/155,277 = 155,277/x
  3. Step 3: Cross multiply
    100,328.63x = 155,277 × 155,277
  4. Step 4: Simplify right side
    100,328.63x = 24,110,946,729
  5. Step 5: Solve for x
    x = 24,110,946,729/100,328.63
  6. Step 6: Final answer
    x = 240,319.72

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.