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Finding the Fourth Proportional to 356,638.48, 534,657.86 and 166,998.93

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Solution

The fourth proportional to 356,638.48, 534,657.86 and 166,998.93 is: 250,357.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,638.48 : 534,657.86 = 166,998.93 : x
  2. Step 2: Convert to fraction form
    356,638.48/534,657.86 = 166,998.93/x
  3. Step 3: Cross multiply
    356,638.48x = 534,657.86 × 166,998.93
  4. Step 4: Simplify right side
    356,638.48x = 89,287,290,536.09
  5. Step 5: Solve for x
    x = 89,287,290,536.09/356,638.48
  6. Step 6: Final answer
    x = 250,357.98

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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.