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Finding the Fourth Proportional to 121,670.53, 182,526.82 and 54,226.53

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Solution

The fourth proportional to 121,670.53, 182,526.82 and 54,226.53 is: 81,349.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,670.53 : 182,526.82 = 54,226.53 : x
  2. Step 2: Convert to fraction form
    121,670.53/182,526.82 = 54,226.53/x
  3. Step 3: Cross multiply
    121,670.53x = 182,526.82 × 54,226.53
  4. Step 4: Simplify right side
    121,670.53x = 9,897,795,944.97
  5. Step 5: Solve for x
    x = 9,897,795,944.97/121,670.53
  6. Step 6: Final answer
    x = 81,349.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.