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Finding the Fourth Proportional to 173,866.20, 260,799.30 and 156,370.20

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Solution

The fourth proportional to 173,866.20, 260,799.30 and 156,370.20 is: 234,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,866.20 : 260,799.30 = 156,370.20 : x
  2. Step 2: Convert to fraction form
    173,866.20/260,799.30 = 156,370.20/x
  3. Step 3: Cross multiply
    173,866.20x = 260,799.30 × 156,370.20
  4. Step 4: Simplify right side
    173,866.20x = 40,781,238,700.86
  5. Step 5: Solve for x
    x = 40,781,238,700.86/173,866.20
  6. Step 6: Final answer
    x = 234,555.30

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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.