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Finding the Fourth Proportional to 117,141.39, 175,722.90 and 38,256.03

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Solution

The fourth proportional to 117,141.39, 175,722.90 and 38,256.03 is: 57,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,141.39 : 175,722.90 = 38,256.03 : x
  2. Step 2: Convert to fraction form
    117,141.39/175,722.90 = 38,256.03/x
  3. Step 3: Cross multiply
    117,141.39x = 175,722.90 × 38,256.03
  4. Step 4: Simplify right side
    117,141.39x = 6,722,460,534.09
  5. Step 5: Solve for x
    x = 6,722,460,534.09/117,141.39
  6. Step 6: Final answer
    x = 57,387.58

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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.