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Finding the Fourth Proportional to 117,242.95, 161,795.41 and 63,527.95

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Solution

The fourth proportional to 117,242.95, 161,795.41 and 63,527.95 is: 87,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,242.95 : 161,795.41 = 63,527.95 : x
  2. Step 2: Convert to fraction form
    117,242.95/161,795.41 = 63,527.95/x
  3. Step 3: Cross multiply
    117,242.95x = 161,795.41 × 63,527.95
  4. Step 4: Simplify right side
    117,242.95x = 10,278,529,907.73
  5. Step 5: Solve for x
    x = 10,278,529,907.73/117,242.95
  6. Step 6: Final answer
    x = 87,668.64

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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.