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Finding the Fourth Proportional to 113,765.47, 170,668.25 and 38,868.01

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Solution

The fourth proportional to 113,765.47, 170,668.25 and 38,868.01 is: 58,308.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,765.47 : 170,668.25 = 38,868.01 : x
  2. Step 2: Convert to fraction form
    113,765.47/170,668.25 = 38,868.01/x
  3. Step 3: Cross multiply
    113,765.47x = 170,668.25 × 38,868.01
  4. Step 4: Simplify right side
    113,765.47x = 6,633,534,772.43
  5. Step 5: Solve for x
    x = 6,633,534,772.43/113,765.47
  6. Step 6: Final answer
    x = 58,308.86

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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.