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Finding the Fourth Proportional to 113,003, 169,528.80 and 38,125

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Solution

The fourth proportional to 113,003, 169,528.80 and 38,125 is: 57,195.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,003 : 169,528.80 = 38,125 : x
  2. Step 2: Convert to fraction form
    113,003/169,528.80 = 38,125/x
  3. Step 3: Cross multiply
    113,003x = 169,528.80 × 38,125
  4. Step 4: Simplify right side
    113,003x = 6,463,285,500
  5. Step 5: Solve for x
    x = 6,463,285,500/113,003
  6. Step 6: Final answer
    x = 57,195.70

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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.