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Finding the Fourth Proportional to 117,242.72, 161,795.10 and 63,527.72

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Solution

The fourth proportional to 117,242.72, 161,795.10 and 63,527.72 is: 87,668.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,242.72 : 161,795.10 = 63,527.72 : x
  2. Step 2: Convert to fraction form
    117,242.72/161,795.10 = 63,527.72/x
  3. Step 3: Cross multiply
    117,242.72x = 161,795.10 × 63,527.72
  4. Step 4: Simplify right side
    117,242.72x = 10,278,473,810.17
  5. Step 5: Solve for x
    x = 10,278,473,810.17/117,242.72
  6. Step 6: Final answer
    x = 87,668.33

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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.