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Finding the Third Proportional to 42,781,779 and 93,403,221

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Solution

The third proportional to 42,781,779 and 93,403,221 is: 203,922,368.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,781,779 : 93,403,221 = 93,403,221 : x
  2. Step 2: Convert to fraction form
    42,781,779/93,403,221 = 93,403,221/x
  3. Step 3: Cross multiply
    42,781,779x = 93,403,221 × 93,403,221
  4. Step 4: Simplify right side
    42,781,779x = 8,724,161,693,174,841
  5. Step 5: Solve for x
    x = 8,724,161,693,174,841/42,781,779
  6. Step 6: Final answer
    x = 203,922,368.29

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.