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Finding the Fourth Proportional to 201,804.60, 302,561.10 and 113,085.30

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Solution

The fourth proportional to 201,804.60, 302,561.10 and 113,085.30 is: 169,546.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,804.60 : 302,561.10 = 113,085.30 : x
  2. Step 2: Convert to fraction form
    201,804.60/302,561.10 = 113,085.30/x
  3. Step 3: Cross multiply
    201,804.60x = 302,561.10 × 113,085.30
  4. Step 4: Simplify right side
    201,804.60x = 34,215,212,761.83
  5. Step 5: Solve for x
    x = 34,215,212,761.83/201,804.60
  6. Step 6: Final answer
    x = 169,546.25

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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.