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Finding the Fourth Proportional to 192,387.56, 265,489.74 and 107,505.32

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Solution

The fourth proportional to 192,387.56, 265,489.74 and 107,505.32 is: 148,354.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,387.56 : 265,489.74 = 107,505.32 : x
  2. Step 2: Convert to fraction form
    192,387.56/265,489.74 = 107,505.32/x
  3. Step 3: Cross multiply
    192,387.56x = 265,489.74 × 107,505.32
  4. Step 4: Simplify right side
    192,387.56x = 28,541,559,455.42
  5. Step 5: Solve for x
    x = 28,541,559,455.42/192,387.56
  6. Step 6: Final answer
    x = 148,354.50

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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.