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Finding the Fourth Proportional to 173,886.60, 260,441.10 and 134,315.40

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Solution

The fourth proportional to 173,886.60, 260,441.10 and 134,315.40 is: 201,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,886.60 : 260,441.10 = 134,315.40 : x
  2. Step 2: Convert to fraction form
    173,886.60/260,441.10 = 134,315.40/x
  3. Step 3: Cross multiply
    173,886.60x = 260,441.10 × 134,315.40
  4. Step 4: Simplify right side
    173,886.60x = 34,981,250,522.94
  5. Step 5: Solve for x
    x = 34,981,250,522.94/173,886.60
  6. Step 6: Final answer
    x = 201,172.78

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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.