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Finding the Fourth Proportional to 117,069.52, 161,555.94 and 63,354.54

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Solution

The fourth proportional to 117,069.52, 161,555.94 and 63,354.54 is: 87,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,069.52 : 161,555.94 = 63,354.54 : x
  2. Step 2: Convert to fraction form
    117,069.52/161,555.94 = 63,354.54/x
  3. Step 3: Cross multiply
    117,069.52x = 161,555.94 × 63,354.54
  4. Step 4: Simplify right side
    117,069.52x = 10,235,302,262.97
  5. Step 5: Solve for x
    x = 10,235,302,262.97/117,069.52
  6. Step 6: Final answer
    x = 87,429.27

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1.5x scale

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.