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Finding the Fourth Proportional to 117,203.27, 161,740.50 and 63,488.27

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Solution

The fourth proportional to 117,203.27, 161,740.50 and 63,488.27 is: 87,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,203.27 : 161,740.50 = 63,488.27 : x
  2. Step 2: Convert to fraction form
    117,203.27/161,740.50 = 63,488.27/x
  3. Step 3: Cross multiply
    117,203.27x = 161,740.50 × 63,488.27
  4. Step 4: Simplify right side
    117,203.27x = 10,268,624,938.29
  5. Step 5: Solve for x
    x = 10,268,624,938.29/117,203.27
  6. Step 6: Final answer
    x = 87,613.81

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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.