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Finding the Third Proportional to 99,392 and 155,664

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Solution

The third proportional to 99,392 and 155,664 is: 243,795.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,392 : 155,664 = 155,664 : x
  2. Step 2: Convert to fraction form
    99,392/155,664 = 155,664/x
  3. Step 3: Cross multiply
    99,392x = 155,664 × 155,664
  4. Step 4: Simplify right side
    99,392x = 24,231,280,896
  5. Step 5: Solve for x
    x = 24,231,280,896/99,392
  6. Step 6: Final answer
    x = 243,795.08

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.