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Finding the Third Proportional to 191,909,636 and 273,509,942

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Solution

The third proportional to 191,909,636 and 273,509,942 is: 389,806,837.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,909,636 : 273,509,942 = 273,509,942 : x
  2. Step 2: Convert to fraction form
    191,909,636/273,509,942 = 273,509,942/x
  3. Step 3: Cross multiply
    191,909,636x = 273,509,942 × 273,509,942
  4. Step 4: Simplify right side
    191,909,636x = 74,807,688,372,843,360
  5. Step 5: Solve for x
    x = 74,807,688,372,843,360/191,909,636
  6. Step 6: Final answer
    x = 389,806,837.91

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.