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Finding the Fourth Proportional to 107,663.82, 161,495.79 and 48,430.29

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Solution

The fourth proportional to 107,663.82, 161,495.79 and 48,430.29 is: 72,645.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,663.82 : 161,495.79 = 48,430.29 : x
  2. Step 2: Convert to fraction form
    107,663.82/161,495.79 = 48,430.29/x
  3. Step 3: Cross multiply
    107,663.82x = 161,495.79 × 48,430.29
  4. Step 4: Simplify right side
    107,663.82x = 7,821,287,761.87
  5. Step 5: Solve for x
    x = 7,821,287,761.87/107,663.82
  6. Step 6: Final answer
    x = 72,645.46

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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.