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Finding the Third Proportional to 191,399,071.50 and 419,857,951.50

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Solution

The third proportional to 191,399,071.50 and 419,857,951.50 is: 921,011,257.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,399,071.50 : 419,857,951.50 = 419,857,951.50 : x
  2. Step 2: Convert to fraction form
    191,399,071.50/419,857,951.50 = 419,857,951.50/x
  3. Step 3: Cross multiply
    191,399,071.50x = 419,857,951.50 × 419,857,951.50
  4. Step 4: Simplify right side
    191,399,071.50x = 176,280,699,437,776,352
  5. Step 5: Solve for x
    x = 176,280,699,437,776,352/191,399,071.50
  6. Step 6: Final answer
    x = 921,011,257.04

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.