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Finding the Fourth Proportional to 201,862.80, 303,450.30 and 172,994.40

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Solution

The fourth proportional to 201,862.80, 303,450.30 and 172,994.40 is: 260,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,862.80 : 303,450.30 = 172,994.40 : x
  2. Step 2: Convert to fraction form
    201,862.80/303,450.30 = 172,994.40/x
  3. Step 3: Cross multiply
    201,862.80x = 303,450.30 × 172,994.40
  4. Step 4: Simplify right side
    201,862.80x = 52,495,202,578.32
  5. Step 5: Solve for x
    x = 52,495,202,578.32/201,862.80
  6. Step 6: Final answer
    x = 260,053.87

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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.