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Finding the Fourth Proportional to 201,868.80, 303,459.30 and 173,000.40

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Solution

The fourth proportional to 201,868.80, 303,459.30 and 173,000.40 is: 260,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,868.80 : 303,459.30 = 173,000.40 : x
  2. Step 2: Convert to fraction form
    201,868.80/303,459.30 = 173,000.40/x
  3. Step 3: Cross multiply
    201,868.80x = 303,459.30 × 173,000.40
  4. Step 4: Simplify right side
    201,868.80x = 52,498,580,283.72
  5. Step 5: Solve for x
    x = 52,498,580,283.72/201,868.80
  6. Step 6: Final answer
    x = 260,062.87

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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.