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Finding the Fourth Proportional to 173,308,905.51, 259,978,489.56 and 43,916,520.21

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Solution

The fourth proportional to 173,308,905.51, 259,978,489.56 and 43,916,520.21 is: 65,878,614.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,308,905.51 : 259,978,489.56 = 43,916,520.21 : x
  2. Step 2: Convert to fraction form
    173,308,905.51/259,978,489.56 = 43,916,520.21/x
  3. Step 3: Cross multiply
    173,308,905.51x = 259,978,489.56 × 43,916,520.21
  4. Step 4: Simplify right side
    173,308,905.51x = 11,417,350,590,927,014
  5. Step 5: Solve for x
    x = 11,417,350,590,927,014/173,308,905.51
  6. Step 6: Final answer
    x = 65,878,614.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.