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Finding the Fourth Proportional to 163,416.51, 225,537.48 and 91,801.98

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Solution

The fourth proportional to 163,416.51, 225,537.48 and 91,801.98 is: 126,699.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,416.51 : 225,537.48 = 91,801.98 : x
  2. Step 2: Convert to fraction form
    163,416.51/225,537.48 = 91,801.98/x
  3. Step 3: Cross multiply
    163,416.51x = 225,537.48 × 91,801.98
  4. Step 4: Simplify right side
    163,416.51x = 20,704,787,228.21
  5. Step 5: Solve for x
    x = 20,704,787,228.21/163,416.51
  6. Step 6: Final answer
    x = 126,699.48

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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.