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Finding the Fourth Proportional to 173,368.20, 260,052.30 and 143,819.40

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Solution

The fourth proportional to 173,368.20, 260,052.30 and 143,819.40 is: 215,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,368.20 : 260,052.30 = 143,819.40 : x
  2. Step 2: Convert to fraction form
    173,368.20/260,052.30 = 143,819.40/x
  3. Step 3: Cross multiply
    173,368.20x = 260,052.30 × 143,819.40
  4. Step 4: Simplify right side
    173,368.20x = 37,400,565,754.62
  5. Step 5: Solve for x
    x = 37,400,565,754.62/173,368.20
  6. Step 6: Final answer
    x = 215,729.10

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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.