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Finding the Third Proportional to 111,849,780.50 and 243,060,311

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Solution

The third proportional to 111,849,780.50 and 243,060,311 is: 528,193,390.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,849,780.50 : 243,060,311 = 243,060,311 : x
  2. Step 2: Convert to fraction form
    111,849,780.50/243,060,311 = 243,060,311/x
  3. Step 3: Cross multiply
    111,849,780.50x = 243,060,311 × 243,060,311
  4. Step 4: Simplify right side
    111,849,780.50x = 59,078,314,783,416,720
  5. Step 5: Solve for x
    x = 59,078,314,783,416,720/111,849,780.50
  6. Step 6: Final answer
    x = 528,193,390.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.