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Finding the Fourth Proportional to 117,066.50, 161,551.77 and 63,351.51

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Solution

The fourth proportional to 117,066.50, 161,551.77 and 63,351.51 is: 87,425.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,066.50 : 161,551.77 = 63,351.51 : x
  2. Step 2: Convert to fraction form
    117,066.50/161,551.77 = 63,351.51/x
  3. Step 3: Cross multiply
    117,066.50x = 161,551.77 × 63,351.51
  4. Step 4: Simplify right side
    117,066.50x = 10,234,548,572.67
  5. Step 5: Solve for x
    x = 10,234,548,572.67/117,066.50
  6. Step 6: Final answer
    x = 87,425.08

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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.