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Finding the Third Proportional to 210,816,188 and 314,984,250

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Solution

The third proportional to 210,816,188 and 314,984,250 is: 470,623,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,816,188 : 314,984,250 = 314,984,250 : x
  2. Step 2: Convert to fraction form
    210,816,188/314,984,250 = 314,984,250/x
  3. Step 3: Cross multiply
    210,816,188x = 314,984,250 × 314,984,250
  4. Step 4: Simplify right side
    210,816,188x = 99,215,077,748,062,496
  5. Step 5: Solve for x
    x = 99,215,077,748,062,496/210,816,188
  6. Step 6: Final answer
    x = 470,623,620.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.