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Finding the Fourth Proportional to 104,786.88, 157,164.72 and 38,211.36

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Solution

The fourth proportional to 104,786.88, 157,164.72 and 38,211.36 is: 57,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,786.88 : 157,164.72 = 38,211.36 : x
  2. Step 2: Convert to fraction form
    104,786.88/157,164.72 = 38,211.36/x
  3. Step 3: Cross multiply
    104,786.88x = 157,164.72 × 38,211.36
  4. Step 4: Simplify right side
    104,786.88x = 6,005,477,695.22
  5. Step 5: Solve for x
    x = 6,005,477,695.22/104,786.88
  6. Step 6: Final answer
    x = 57,311.35

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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.