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Finding the Fourth Proportional to 201,920.20, 302,880.30 and 173,871.93

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Solution

The fourth proportional to 201,920.20, 302,880.30 and 173,871.93 is: 260,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,920.20 : 302,880.30 = 173,871.93 : x
  2. Step 2: Convert to fraction form
    201,920.20/302,880.30 = 173,871.93/x
  3. Step 3: Cross multiply
    201,920.20x = 302,880.30 × 173,871.93
  4. Step 4: Simplify right side
    201,920.20x = 52,662,382,319.98
  5. Step 5: Solve for x
    x = 52,662,382,319.98/201,920.20
  6. Step 6: Final answer
    x = 260,807.90

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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.