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Finding the Fourth Proportional to 171,562.79, 236,699.91 and 103,553.93

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Solution

The fourth proportional to 171,562.79, 236,699.91 and 103,553.93 is: 142,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,562.79 : 236,699.91 = 103,553.93 : x
  2. Step 2: Convert to fraction form
    171,562.79/236,699.91 = 103,553.93/x
  3. Step 3: Cross multiply
    171,562.79x = 236,699.91 × 103,553.93
  4. Step 4: Simplify right side
    171,562.79x = 24,511,206,502.90
  5. Step 5: Solve for x
    x = 24,511,206,502.90/171,562.79
  6. Step 6: Final answer
    x = 142,870.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.