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Finding the Fourth Proportional to 113,197.88, 169,787.03 and 38,316.42

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Solution

The fourth proportional to 113,197.88, 169,787.03 and 38,316.42 is: 57,471.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,197.88 : 169,787.03 = 38,316.42 : x
  2. Step 2: Convert to fraction form
    113,197.88/169,787.03 = 38,316.42/x
  3. Step 3: Cross multiply
    113,197.88x = 169,787.03 × 38,316.42
  4. Step 4: Simplify right side
    113,197.88x = 6,505,631,152.03
  5. Step 5: Solve for x
    x = 6,505,631,152.03/113,197.88
  6. Step 6: Final answer
    x = 57,471.32

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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.