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Finding the Third Proportional to 191,403,881.25 and 419,863,966.50

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Solution

The third proportional to 191,403,881.25 and 419,863,966.50 is: 921,014,501.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,403,881.25 : 419,863,966.50 = 419,863,966.50 : x
  2. Step 2: Convert to fraction form
    191,403,881.25/419,863,966.50 = 419,863,966.50/x
  3. Step 3: Cross multiply
    191,403,881.25x = 419,863,966.50 × 419,863,966.50
  4. Step 4: Simplify right side
    191,403,881.25x = 176,285,750,365,113,120
  5. Step 5: Solve for x
    x = 176,285,750,365,113,120/191,403,881.25
  6. Step 6: Final answer
    x = 921,014,501.97

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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.