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Finding the Fourth Proportional to 113,684.81, 170,544.72 and 38,787.49

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Solution

The fourth proportional to 113,684.81, 170,544.72 and 38,787.49 is: 58,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,684.81 : 170,544.72 = 38,787.49 : x
  2. Step 2: Convert to fraction form
    113,684.81/170,544.72 = 38,787.49/x
  3. Step 3: Cross multiply
    113,684.81x = 170,544.72 × 38,787.49
  4. Step 4: Simplify right side
    113,684.81x = 6,615,001,980.19
  5. Step 5: Solve for x
    x = 6,615,001,980.19/113,684.81
  6. Step 6: Final answer
    x = 58,187.21

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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.