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Finding the Fourth Proportional to 201,913.70, 302,870.55 and 173,865.43

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Solution

The fourth proportional to 201,913.70, 302,870.55 and 173,865.43 is: 260,798.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,913.70 : 302,870.55 = 173,865.43 : x
  2. Step 2: Convert to fraction form
    201,913.70/302,870.55 = 173,865.43/x
  3. Step 3: Cross multiply
    201,913.70x = 302,870.55 × 173,865.43
  4. Step 4: Simplify right side
    201,913.70x = 52,658,718,410.09
  5. Step 5: Solve for x
    x = 52,658,718,410.09/201,913.70
  6. Step 6: Final answer
    x = 260,798.15

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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.