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Finding the Fourth Proportional to 117,066.52, 161,551.80 and 63,351.54

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Solution

The fourth proportional to 117,066.52, 161,551.80 and 63,351.54 is: 87,425.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,066.52 : 161,551.80 = 63,351.54 : x
  2. Step 2: Convert to fraction form
    117,066.52/161,551.80 = 63,351.54/x
  3. Step 3: Cross multiply
    117,066.52x = 161,551.80 × 63,351.54
  4. Step 4: Simplify right side
    117,066.52x = 10,234,555,319.77
  5. Step 5: Solve for x
    x = 10,234,555,319.77/117,066.52
  6. Step 6: Final answer
    x = 87,425.13

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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.