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Finding the Fourth Proportional to 202,445.40, 303,886.80 and 113,871.90

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Solution

The fourth proportional to 202,445.40, 303,886.80 and 113,871.90 is: 170,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,445.40 : 303,886.80 = 113,871.90 : x
  2. Step 2: Convert to fraction form
    202,445.40/303,886.80 = 113,871.90/x
  3. Step 3: Cross multiply
    202,445.40x = 303,886.80 × 113,871.90
  4. Step 4: Simplify right side
    202,445.40x = 34,604,167,300.92
  5. Step 5: Solve for x
    x = 34,604,167,300.92/202,445.40
  6. Step 6: Final answer
    x = 170,930.86

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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.