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Finding the Fourth Proportional to 113,191, 169,527.96 and 54,068.50

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Solution

The fourth proportional to 113,191, 169,527.96 and 54,068.50 is: 80,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,191 : 169,527.96 = 54,068.50 : x
  2. Step 2: Convert to fraction form
    113,191/169,527.96 = 54,068.50/x
  3. Step 3: Cross multiply
    113,191x = 169,527.96 × 54,068.50
  4. Step 4: Simplify right side
    113,191x = 9,166,122,505.26
  5. Step 5: Solve for x
    x = 9,166,122,505.26/113,191
  6. Step 6: Final answer
    x = 80,979.25

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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.