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Finding the Third Proportional to 99,528,126 and 155,787,580

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Solution

The third proportional to 99,528,126 and 155,787,580 is: 243,848,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,528,126 : 155,787,580 = 155,787,580 : x
  2. Step 2: Convert to fraction form
    99,528,126/155,787,580 = 155,787,580/x
  3. Step 3: Cross multiply
    99,528,126x = 155,787,580 × 155,787,580
  4. Step 4: Simplify right side
    99,528,126x = 24,269,770,082,256,400
  5. Step 5: Solve for x
    x = 24,269,770,082,256,400/99,528,126
  6. Step 6: Final answer
    x = 243,848,357.82

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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.